Home / 8,631.20-12,946.80-6,583.20

Finding the Fourth Proportional to 8,631.20, 12,946.80 and 6,583.20

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Solution

The fourth proportional to 8,631.20, 12,946.80 and 6,583.20 is: 9,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.20 : 12,946.80 = 6,583.20 : x
  2. Step 2: Convert to fraction form
    8,631.20/12,946.80 = 6,583.20/x
  3. Step 3: Cross multiply
    8,631.20x = 12,946.80 × 6,583.20
  4. Step 4: Simplify right side
    8,631.20x = 85,231,373.76
  5. Step 5: Solve for x
    x = 85,231,373.76/8,631.20
  6. Step 6: Final answer
    x = 9,874.80

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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.