Home / 16,990.28-25,477.19-7,126.91

Finding the Fourth Proportional to 16,990.28, 25,477.19 and 7,126.91

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Solution

The fourth proportional to 16,990.28, 25,477.19 and 7,126.91 is: 10,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.28 : 25,477.19 = 7,126.91 : x
  2. Step 2: Convert to fraction form
    16,990.28/25,477.19 = 7,126.91/x
  3. Step 3: Cross multiply
    16,990.28x = 25,477.19 × 7,126.91
  4. Step 4: Simplify right side
    16,990.28x = 181,573,640.18
  5. Step 5: Solve for x
    x = 181,573,640.18/16,990.28
  6. Step 6: Final answer
    x = 10,686.91

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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.