Home / 15,461.49-23,173.24-7,129.95

Finding the Fourth Proportional to 15,461.49, 23,173.24 and 7,129.95

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Solution

The fourth proportional to 15,461.49, 23,173.24 and 7,129.95 is: 10,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.49 : 23,173.24 = 7,129.95 : x
  2. Step 2: Convert to fraction form
    15,461.49/23,173.24 = 7,129.95/x
  3. Step 3: Cross multiply
    15,461.49x = 23,173.24 × 7,129.95
  4. Step 4: Simplify right side
    15,461.49x = 165,224,042.54
  5. Step 5: Solve for x
    x = 165,224,042.54/15,461.49
  6. Step 6: Final answer
    x = 10,686.17

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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.