Home / 7,002.30-10,503.45-6,880.80

Finding the Fourth Proportional to 7,002.30, 10,503.45 and 6,880.80

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Solution

The fourth proportional to 7,002.30, 10,503.45 and 6,880.80 is: 10,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.30 : 10,503.45 = 6,880.80 : x
  2. Step 2: Convert to fraction form
    7,002.30/10,503.45 = 6,880.80/x
  3. Step 3: Cross multiply
    7,002.30x = 10,503.45 × 6,880.80
  4. Step 4: Simplify right side
    7,002.30x = 72,272,138.76
  5. Step 5: Solve for x
    x = 72,272,138.76/7,002.30
  6. Step 6: Final answer
    x = 10,321.20

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Similar ratio
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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.