Home / 19,129.78-26,387.85-13,472.74

Finding the Fourth Proportional to 19,129.78, 26,387.85 and 13,472.74

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Solution

The fourth proportional to 19,129.78, 26,387.85 and 13,472.74 is: 18,584.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.78 : 26,387.85 = 13,472.74 : x
  2. Step 2: Convert to fraction form
    19,129.78/26,387.85 = 13,472.74/x
  3. Step 3: Cross multiply
    19,129.78x = 26,387.85 × 13,472.74
  4. Step 4: Simplify right side
    19,129.78x = 355,516,642.21
  5. Step 5: Solve for x
    x = 355,516,642.21/19,129.78
  6. Step 6: Final answer
    x = 18,584.46

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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.