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Finding the Fourth Proportional to 10,235.69, 15,353.53 and 5,647.85

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Solution

The fourth proportional to 10,235.69, 15,353.53 and 5,647.85 is: 8,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.69 : 15,353.53 = 5,647.85 : x
  2. Step 2: Convert to fraction form
    10,235.69/15,353.53 = 5,647.85/x
  3. Step 3: Cross multiply
    10,235.69x = 15,353.53 × 5,647.85
  4. Step 4: Simplify right side
    10,235.69x = 86,714,357.64
  5. Step 5: Solve for x
    x = 86,714,357.64/10,235.69
  6. Step 6: Final answer
    x = 8,471.77

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.