Home / 15,799.80-23,670.90-12,862.20

Finding the Fourth Proportional to 15,799.80, 23,670.90 and 12,862.20

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Solution

The fourth proportional to 15,799.80, 23,670.90 and 12,862.20 is: 19,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.80 : 23,670.90 = 12,862.20 : x
  2. Step 2: Convert to fraction form
    15,799.80/23,670.90 = 12,862.20/x
  3. Step 3: Cross multiply
    15,799.80x = 23,670.90 × 12,862.20
  4. Step 4: Simplify right side
    15,799.80x = 304,459,849.98
  5. Step 5: Solve for x
    x = 304,459,849.98/15,799.80
  6. Step 6: Final answer
    x = 19,269.85

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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.