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Finding the Fourth Proportional to 13,034.66, 17,990.33 and 7,732.40

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Solution

The fourth proportional to 13,034.66, 17,990.33 and 7,732.40 is: 10,672.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,034.66 : 17,990.33 = 7,732.40 : x
  2. Step 2: Convert to fraction form
    13,034.66/17,990.33 = 7,732.40/x
  3. Step 3: Cross multiply
    13,034.66x = 17,990.33 × 7,732.40
  4. Step 4: Simplify right side
    13,034.66x = 139,108,434.01
  5. Step 5: Solve for x
    x = 139,108,434.01/13,034.66
  6. Step 6: Final answer
    x = 10,672.19

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1.5x scale

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.