Home / 15,010.24-20,715.75-8,637.11

Finding the Fourth Proportional to 15,010.24, 20,715.75 and 8,637.11

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Solution

The fourth proportional to 15,010.24, 20,715.75 and 8,637.11 is: 11,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,010.24 : 20,715.75 = 8,637.11 : x
  2. Step 2: Convert to fraction form
    15,010.24/20,715.75 = 8,637.11/x
  3. Step 3: Cross multiply
    15,010.24x = 20,715.75 × 8,637.11
  4. Step 4: Simplify right side
    15,010.24x = 178,924,211.48
  5. Step 5: Solve for x
    x = 178,924,211.48/15,010.24
  6. Step 6: Final answer
    x = 11,920.14

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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.