Home / 15,535.60-21,434.01-9,073.75

Finding the Fourth Proportional to 15,535.60, 21,434.01 and 9,073.75

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Solution

The fourth proportional to 15,535.60, 21,434.01 and 9,073.75 is: 12,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.60 : 21,434.01 = 9,073.75 : x
  2. Step 2: Convert to fraction form
    15,535.60/21,434.01 = 9,073.75/x
  3. Step 3: Cross multiply
    15,535.60x = 21,434.01 × 9,073.75
  4. Step 4: Simplify right side
    15,535.60x = 194,486,771.97
  5. Step 5: Solve for x
    x = 194,486,771.97/15,535.60
  6. Step 6: Final answer
    x = 12,518.78

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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.