Home / 12,535.79-17,295.12-7,154.36

Finding the Fourth Proportional to 12,535.79, 17,295.12 and 7,154.36

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Solution

The fourth proportional to 12,535.79, 17,295.12 and 7,154.36 is: 9,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.79 : 17,295.12 = 7,154.36 : x
  2. Step 2: Convert to fraction form
    12,535.79/17,295.12 = 7,154.36/x
  3. Step 3: Cross multiply
    12,535.79x = 17,295.12 × 7,154.36
  4. Step 4: Simplify right side
    12,535.79x = 123,735,514.72
  5. Step 5: Solve for x
    x = 123,735,514.72/12,535.79
  6. Step 6: Final answer
    x = 9,870.58

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Double scale
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Similar ratio
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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.