Home / 9,039.60-12,472.80-5,060.40

Finding the Fourth Proportional to 9,039.60, 12,472.80 and 5,060.40

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Solution

The fourth proportional to 9,039.60, 12,472.80 and 5,060.40 is: 6,982.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.60 : 12,472.80 = 5,060.40 : x
  2. Step 2: Convert to fraction form
    9,039.60/12,472.80 = 5,060.40/x
  3. Step 3: Cross multiply
    9,039.60x = 12,472.80 × 5,060.40
  4. Step 4: Simplify right side
    9,039.60x = 63,117,357.12
  5. Step 5: Solve for x
    x = 63,117,357.12/9,039.60
  6. Step 6: Final answer
    x = 6,982.32

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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.