Home / 15,187.08-22,780.59-8,157.42

Finding the Fourth Proportional to 15,187.08, 22,780.59 and 8,157.42

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Solution

The fourth proportional to 15,187.08, 22,780.59 and 8,157.42 is: 12,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.08 : 22,780.59 = 8,157.42 : x
  2. Step 2: Convert to fraction form
    15,187.08/22,780.59 = 8,157.42/x
  3. Step 3: Cross multiply
    15,187.08x = 22,780.59 × 8,157.42
  4. Step 4: Simplify right side
    15,187.08x = 185,830,840.48
  5. Step 5: Solve for x
    x = 185,830,840.48/15,187.08
  6. Step 6: Final answer
    x = 12,236.11

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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.