Home / 15,134.13-20,885.10-8,510.13

Finding the Fourth Proportional to 15,134.13, 20,885.10 and 8,510.13

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Solution

The fourth proportional to 15,134.13, 20,885.10 and 8,510.13 is: 11,743.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,134.13 : 20,885.10 = 8,510.13 : x
  2. Step 2: Convert to fraction form
    15,134.13/20,885.10 = 8,510.13/x
  3. Step 3: Cross multiply
    15,134.13x = 20,885.10 × 8,510.13
  4. Step 4: Simplify right side
    15,134.13x = 177,734,916.06
  5. Step 5: Solve for x
    x = 177,734,916.06/15,134.13
  6. Step 6: Final answer
    x = 11,743.98

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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.