Home / 10,316.72-15,470.28-3,742.64

Finding the Fourth Proportional to 10,316.72, 15,470.28 and 3,742.64

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Solution

The fourth proportional to 10,316.72, 15,470.28 and 3,742.64 is: 5,612.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.72 : 15,470.28 = 3,742.64 : x
  2. Step 2: Convert to fraction form
    10,316.72/15,470.28 = 3,742.64/x
  3. Step 3: Cross multiply
    10,316.72x = 15,470.28 × 3,742.64
  4. Step 4: Simplify right side
    10,316.72x = 57,899,688.74
  5. Step 5: Solve for x
    x = 57,899,688.74/10,316.72
  6. Step 6: Final answer
    x = 5,612.22

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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.