Home / 10,709.20-14,778.80-5,993.72

Finding the Fourth Proportional to 10,709.20, 14,778.80 and 5,993.72

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Solution

The fourth proportional to 10,709.20, 14,778.80 and 5,993.72 is: 8,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709.20 : 14,778.80 = 5,993.72 : x
  2. Step 2: Convert to fraction form
    10,709.20/14,778.80 = 5,993.72/x
  3. Step 3: Cross multiply
    10,709.20x = 14,778.80 × 5,993.72
  4. Step 4: Simplify right side
    10,709.20x = 88,579,989.14
  5. Step 5: Solve for x
    x = 88,579,989.14/10,709.20
  6. Step 6: Final answer
    x = 8,271.39

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.