Home / 9,002.20-13,503.30-7,908.70

Finding the Fourth Proportional to 9,002.20, 13,503.30 and 7,908.70

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Solution

The fourth proportional to 9,002.20, 13,503.30 and 7,908.70 is: 11,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,002.20 : 13,503.30 = 7,908.70 : x
  2. Step 2: Convert to fraction form
    9,002.20/13,503.30 = 7,908.70/x
  3. Step 3: Cross multiply
    9,002.20x = 13,503.30 × 7,908.70
  4. Step 4: Simplify right side
    9,002.20x = 106,793,548.71
  5. Step 5: Solve for x
    x = 106,793,548.71/9,002.20
  6. Step 6: Final answer
    x = 11,863.05

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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.