Home / 15,988.56-22,044.60-13,146

Finding the Fourth Proportional to 15,988.56, 22,044.60 and 13,146

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Solution

The fourth proportional to 15,988.56, 22,044.60 and 13,146 is: 18,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.56 : 22,044.60 = 13,146 : x
  2. Step 2: Convert to fraction form
    15,988.56/22,044.60 = 13,146/x
  3. Step 3: Cross multiply
    15,988.56x = 22,044.60 × 13,146
  4. Step 4: Simplify right side
    15,988.56x = 289,798,311.60
  5. Step 5: Solve for x
    x = 289,798,311.60/15,988.56
  6. Step 6: Final answer
    x = 18,125.35

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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.