Home / 9,272.80-13,909.20-8,869.60

Finding the Fourth Proportional to 9,272.80, 13,909.20 and 8,869.60

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Solution

The fourth proportional to 9,272.80, 13,909.20 and 8,869.60 is: 13,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,272.80 : 13,909.20 = 8,869.60 : x
  2. Step 2: Convert to fraction form
    9,272.80/13,909.20 = 8,869.60/x
  3. Step 3: Cross multiply
    9,272.80x = 13,909.20 × 8,869.60
  4. Step 4: Simplify right side
    9,272.80x = 123,369,040.32
  5. Step 5: Solve for x
    x = 123,369,040.32/9,272.80
  6. Step 6: Final answer
    x = 13,304.40

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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.