Home / 10,110.72-15,154.08-7,637.28

Finding the Fourth Proportional to 10,110.72, 15,154.08 and 7,637.28

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Solution

The fourth proportional to 10,110.72, 15,154.08 and 7,637.28 is: 11,446.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,110.72 : 15,154.08 = 7,637.28 : x
  2. Step 2: Convert to fraction form
    10,110.72/15,154.08 = 7,637.28/x
  3. Step 3: Cross multiply
    10,110.72x = 15,154.08 × 7,637.28
  4. Step 4: Simplify right side
    10,110.72x = 115,735,952.10
  5. Step 5: Solve for x
    x = 115,735,952.10/10,110.72
  6. Step 6: Final answer
    x = 11,446.86

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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.