Home / 10,245.20-15,356.80-5,853.20

Finding the Fourth Proportional to 10,245.20, 15,356.80 and 5,853.20

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Solution

The fourth proportional to 10,245.20, 15,356.80 and 5,853.20 is: 8,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.20 : 15,356.80 = 5,853.20 : x
  2. Step 2: Convert to fraction form
    10,245.20/15,356.80 = 5,853.20/x
  3. Step 3: Cross multiply
    10,245.20x = 15,356.80 × 5,853.20
  4. Step 4: Simplify right side
    10,245.20x = 89,886,421.76
  5. Step 5: Solve for x
    x = 89,886,421.76/10,245.20
  6. Step 6: Final answer
    x = 8,773.52

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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.