Home / 15,701.76-21,677.94-10,401.12

Finding the Fourth Proportional to 15,701.76, 21,677.94 and 10,401.12

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Solution

The fourth proportional to 15,701.76, 21,677.94 and 10,401.12 is: 14,359.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,701.76 : 21,677.94 = 10,401.12 : x
  2. Step 2: Convert to fraction form
    15,701.76/21,677.94 = 10,401.12/x
  3. Step 3: Cross multiply
    15,701.76x = 21,677.94 × 10,401.12
  4. Step 4: Simplify right side
    15,701.76x = 225,474,855.29
  5. Step 5: Solve for x
    x = 225,474,855.29/15,701.76
  6. Step 6: Final answer
    x = 14,359.85

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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.