Home / 10,601.60-15,902.40-8,148.80

Finding the Fourth Proportional to 10,601.60, 15,902.40 and 8,148.80

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Solution

The fourth proportional to 10,601.60, 15,902.40 and 8,148.80 is: 12,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,601.60 : 15,902.40 = 8,148.80 : x
  2. Step 2: Convert to fraction form
    10,601.60/15,902.40 = 8,148.80/x
  3. Step 3: Cross multiply
    10,601.60x = 15,902.40 × 8,148.80
  4. Step 4: Simplify right side
    10,601.60x = 129,585,477.12
  5. Step 5: Solve for x
    x = 129,585,477.12/10,601.60
  6. Step 6: Final answer
    x = 12,223.20

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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.