Home / 10,126.59-15,189.84-2,731.80

Finding the Fourth Proportional to 10,126.59, 15,189.84 and 2,731.80

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Solution

The fourth proportional to 10,126.59, 15,189.84 and 2,731.80 is: 4,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.59 : 15,189.84 = 2,731.80 : x
  2. Step 2: Convert to fraction form
    10,126.59/15,189.84 = 2,731.80/x
  3. Step 3: Cross multiply
    10,126.59x = 15,189.84 × 2,731.80
  4. Step 4: Simplify right side
    10,126.59x = 41,495,547.95
  5. Step 5: Solve for x
    x = 41,495,547.95/10,126.59
  6. Step 6: Final answer
    x = 4,097.68

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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.