Home / 19,218.38-26,521.52-10,720.22

Finding the Fourth Proportional to 19,218.38, 26,521.52 and 10,720.22

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Solution

The fourth proportional to 19,218.38, 26,521.52 and 10,720.22 is: 14,793.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.38 : 26,521.52 = 10,720.22 : x
  2. Step 2: Convert to fraction form
    19,218.38/26,521.52 = 10,720.22/x
  3. Step 3: Cross multiply
    19,218.38x = 26,521.52 × 10,720.22
  4. Step 4: Simplify right side
    19,218.38x = 284,316,529.13
  5. Step 5: Solve for x
    x = 284,316,529.13/19,218.38
  6. Step 6: Final answer
    x = 14,793.99

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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.