Home / 12,586.32-17,367.20-7,280.12

Finding the Fourth Proportional to 12,586.32, 17,367.20 and 7,280.12

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Solution

The fourth proportional to 12,586.32, 17,367.20 and 7,280.12 is: 10,045.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.32 : 17,367.20 = 7,280.12 : x
  2. Step 2: Convert to fraction form
    12,586.32/17,367.20 = 7,280.12/x
  3. Step 3: Cross multiply
    12,586.32x = 17,367.20 × 7,280.12
  4. Step 4: Simplify right side
    12,586.32x = 126,435,176.83
  5. Step 5: Solve for x
    x = 126,435,176.83/12,586.32
  6. Step 6: Final answer
    x = 10,045.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.