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Finding the Fourth Proportional to 12,937.68, 17,852.04 and 7,348.56

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Solution

The fourth proportional to 12,937.68, 17,852.04 and 7,348.56 is: 10,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,937.68 : 17,852.04 = 7,348.56 : x
  2. Step 2: Convert to fraction form
    12,937.68/17,852.04 = 7,348.56/x
  3. Step 3: Cross multiply
    12,937.68x = 17,852.04 × 7,348.56
  4. Step 4: Simplify right side
    12,937.68x = 131,186,787.06
  5. Step 5: Solve for x
    x = 131,186,787.06/12,937.68
  6. Step 6: Final answer
    x = 10,139.90

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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.