Home / 19,121.91-26,387.85-10,623.99

Finding the Fourth Proportional to 19,121.91, 26,387.85 and 10,623.99

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Solution

The fourth proportional to 19,121.91, 26,387.85 and 10,623.99 is: 14,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.91 : 26,387.85 = 10,623.99 : x
  2. Step 2: Convert to fraction form
    19,121.91/26,387.85 = 10,623.99/x
  3. Step 3: Cross multiply
    19,121.91x = 26,387.85 × 10,623.99
  4. Step 4: Simplify right side
    19,121.91x = 280,344,254.52
  5. Step 5: Solve for x
    x = 280,344,254.52/19,121.91
  6. Step 6: Final answer
    x = 14,660.89

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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.