Home / 15,033.60-20,747.96-8,660.46

Finding the Fourth Proportional to 15,033.60, 20,747.96 and 8,660.46

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Solution

The fourth proportional to 15,033.60, 20,747.96 and 8,660.46 is: 11,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.60 : 20,747.96 = 8,660.46 : x
  2. Step 2: Convert to fraction form
    15,033.60/20,747.96 = 8,660.46/x
  3. Step 3: Cross multiply
    15,033.60x = 20,747.96 × 8,660.46
  4. Step 4: Simplify right side
    15,033.60x = 179,686,877.66
  5. Step 5: Solve for x
    x = 179,686,877.66/15,033.60
  6. Step 6: Final answer
    x = 11,952.35

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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.