Home / 15,125.34-20,862.14-10,087.04

Finding the Fourth Proportional to 15,125.34, 20,862.14 and 10,087.04

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Solution

The fourth proportional to 15,125.34, 20,862.14 and 10,087.04 is: 13,912.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.34 : 20,862.14 = 10,087.04 : x
  2. Step 2: Convert to fraction form
    15,125.34/20,862.14 = 10,087.04/x
  3. Step 3: Cross multiply
    15,125.34x = 20,862.14 × 10,087.04
  4. Step 4: Simplify right side
    15,125.34x = 210,437,240.67
  5. Step 5: Solve for x
    x = 210,437,240.67/15,125.34
  6. Step 6: Final answer
    x = 13,912.89

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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.