Home / 12,711.75-19,067.36-5,690.13

Finding the Fourth Proportional to 12,711.75, 19,067.36 and 5,690.13

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Solution

The fourth proportional to 12,711.75, 19,067.36 and 5,690.13 is: 8,535.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.75 : 19,067.36 = 5,690.13 : x
  2. Step 2: Convert to fraction form
    12,711.75/19,067.36 = 5,690.13/x
  3. Step 3: Cross multiply
    12,711.75x = 19,067.36 × 5,690.13
  4. Step 4: Simplify right side
    12,711.75x = 108,495,728.71
  5. Step 5: Solve for x
    x = 108,495,728.71/12,711.75
  6. Step 6: Final answer
    x = 8,535.07

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.