Home / 10,938.72-15,096-6,223.68

Finding the Fourth Proportional to 10,938.72, 15,096 and 6,223.68

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Solution

The fourth proportional to 10,938.72, 15,096 and 6,223.68 is: 8,589.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,938.72 : 15,096 = 6,223.68 : x
  2. Step 2: Convert to fraction form
    10,938.72/15,096 = 6,223.68/x
  3. Step 3: Cross multiply
    10,938.72x = 15,096 × 6,223.68
  4. Step 4: Simplify right side
    10,938.72x = 93,952,673.28
  5. Step 5: Solve for x
    x = 93,952,673.28/10,938.72
  6. Step 6: Final answer
    x = 8,589.00

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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.