Home / 13,981.49-20,933.00-10,487.76

Finding the Fourth Proportional to 13,981.49, 20,933.00 and 10,487.76

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Solution

The fourth proportional to 13,981.49, 20,933.00 and 10,487.76 is: 15,702.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.49 : 20,933.00 = 10,487.76 : x
  2. Step 2: Convert to fraction form
    13,981.49/20,933.00 = 10,487.76/x
  3. Step 3: Cross multiply
    13,981.49x = 20,933.00 × 10,487.76
  4. Step 4: Simplify right side
    13,981.49x = 219,540,306.30
  5. Step 5: Solve for x
    x = 219,540,306.30/13,981.49
  6. Step 6: Final answer
    x = 15,702.21

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1.5x scale

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.