Home / 15,160.13-20,922.80-8,872.50

Finding the Fourth Proportional to 15,160.13, 20,922.80 and 8,872.50

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Solution

The fourth proportional to 15,160.13, 20,922.80 and 8,872.50 is: 12,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,160.13 : 20,922.80 = 8,872.50 : x
  2. Step 2: Convert to fraction form
    15,160.13/20,922.80 = 8,872.50/x
  3. Step 3: Cross multiply
    15,160.13x = 20,922.80 × 8,872.50
  4. Step 4: Simplify right side
    15,160.13x = 185,637,498.64
  5. Step 5: Solve for x
    x = 185,637,498.64/15,160.13
  6. Step 6: Final answer
    x = 12,245.12

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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.