Home / 10,257.76-14,156.20-5,781.99

Finding the Fourth Proportional to 10,257.76, 14,156.20 and 5,781.99

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Solution

The fourth proportional to 10,257.76, 14,156.20 and 5,781.99 is: 7,979.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.76 : 14,156.20 = 5,781.99 : x
  2. Step 2: Convert to fraction form
    10,257.76/14,156.20 = 5,781.99/x
  3. Step 3: Cross multiply
    10,257.76x = 14,156.20 × 5,781.99
  4. Step 4: Simplify right side
    10,257.76x = 81,851,006.84
  5. Step 5: Solve for x
    x = 81,851,006.84/10,257.76
  6. Step 6: Final answer
    x = 7,979.42

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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.