Home / 14,164.20-19,535.78-9,128.92

Finding the Fourth Proportional to 14,164.20, 19,535.78 and 9,128.92

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Solution

The fourth proportional to 14,164.20, 19,535.78 and 9,128.92 is: 12,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,164.20 : 19,535.78 = 9,128.92 : x
  2. Step 2: Convert to fraction form
    14,164.20/19,535.78 = 9,128.92/x
  3. Step 3: Cross multiply
    14,164.20x = 19,535.78 × 9,128.92
  4. Step 4: Simplify right side
    14,164.20x = 178,340,572.76
  5. Step 5: Solve for x
    x = 178,340,572.76/14,164.20
  6. Step 6: Final answer
    x = 12,590.94

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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.