Home / 8,549.20-12,823.80-6,475.60

Finding the Fourth Proportional to 8,549.20, 12,823.80 and 6,475.60

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Solution

The fourth proportional to 8,549.20, 12,823.80 and 6,475.60 is: 9,713.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,549.20 : 12,823.80 = 6,475.60 : x
  2. Step 2: Convert to fraction form
    8,549.20/12,823.80 = 6,475.60/x
  3. Step 3: Cross multiply
    8,549.20x = 12,823.80 × 6,475.60
  4. Step 4: Simplify right side
    8,549.20x = 83,041,799.28
  5. Step 5: Solve for x
    x = 83,041,799.28/8,549.20
  6. Step 6: Final answer
    x = 9,713.40

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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.