Home / 12,582.08-17,372.30-8,813.61

Finding the Fourth Proportional to 12,582.08, 17,372.30 and 8,813.61

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Solution

The fourth proportional to 12,582.08, 17,372.30 and 8,813.61 is: 12,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,582.08 : 17,372.30 = 8,813.61 : x
  2. Step 2: Convert to fraction form
    12,582.08/17,372.30 = 8,813.61/x
  3. Step 3: Cross multiply
    12,582.08x = 17,372.30 × 8,813.61
  4. Step 4: Simplify right side
    12,582.08x = 153,112,657.72
  5. Step 5: Solve for x
    x = 153,112,657.72/12,582.08
  6. Step 6: Final answer
    x = 12,169.10

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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.