Home / 15,419.98-23,110.50-12,853.90

Finding the Fourth Proportional to 15,419.98, 23,110.50 and 12,853.90

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Solution

The fourth proportional to 15,419.98, 23,110.50 and 12,853.90 is: 19,264.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.98 : 23,110.50 = 12,853.90 : x
  2. Step 2: Convert to fraction form
    15,419.98/23,110.50 = 12,853.90/x
  3. Step 3: Cross multiply
    15,419.98x = 23,110.50 × 12,853.90
  4. Step 4: Simplify right side
    15,419.98x = 297,060,055.95
  5. Step 5: Solve for x
    x = 297,060,055.95/15,419.98
  6. Step 6: Final answer
    x = 19,264.62

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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.