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Finding the Fourth Proportional to 13,052.34, 18,011.13 and 7,386.79

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Solution

The fourth proportional to 13,052.34, 18,011.13 and 7,386.79 is: 10,193.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052.34 : 18,011.13 = 7,386.79 : x
  2. Step 2: Convert to fraction form
    13,052.34/18,011.13 = 7,386.79/x
  3. Step 3: Cross multiply
    13,052.34x = 18,011.13 × 7,386.79
  4. Step 4: Simplify right side
    13,052.34x = 133,044,434.97
  5. Step 5: Solve for x
    x = 133,044,434.97/13,052.34
  6. Step 6: Final answer
    x = 10,193.15

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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.