Home / 19,129.71-26,399.49-10,631.58

Finding the Fourth Proportional to 19,129.71, 26,399.49 and 10,631.58

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Solution

The fourth proportional to 19,129.71, 26,399.49 and 10,631.58 is: 14,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.71 : 26,399.49 = 10,631.58 : x
  2. Step 2: Convert to fraction form
    19,129.71/26,399.49 = 10,631.58/x
  3. Step 3: Cross multiply
    19,129.71x = 26,399.49 × 10,631.58
  4. Step 4: Simplify right side
    19,129.71x = 280,668,289.89
  5. Step 5: Solve for x
    x = 280,668,289.89/19,129.71
  6. Step 6: Final answer
    x = 14,671.85

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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.