Home / 10,251.27-15,389.87-8,721.99

Finding the Fourth Proportional to 10,251.27, 15,389.87 and 8,721.99

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Solution

The fourth proportional to 10,251.27, 15,389.87 and 8,721.99 is: 13,094.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,251.27 : 15,389.87 = 8,721.99 : x
  2. Step 2: Convert to fraction form
    10,251.27/15,389.87 = 8,721.99/x
  3. Step 3: Cross multiply
    10,251.27x = 15,389.87 × 8,721.99
  4. Step 4: Simplify right side
    10,251.27x = 134,230,248.63
  5. Step 5: Solve for x
    x = 134,230,248.63/10,251.27
  6. Step 6: Final answer
    x = 13,094.01

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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.