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Finding the Fourth Proportional to 12,924, 17,836.56 and 7,336.80

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Solution

The fourth proportional to 12,924, 17,836.56 and 7,336.80 is: 10,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,924 : 17,836.56 = 7,336.80 : x
  2. Step 2: Convert to fraction form
    12,924/17,836.56 = 7,336.80/x
  3. Step 3: Cross multiply
    12,924x = 17,836.56 × 7,336.80
  4. Step 4: Simplify right side
    12,924x = 130,863,273.41
  5. Step 5: Solve for x
    x = 130,863,273.41/12,924
  6. Step 6: Final answer
    x = 10,125.60

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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.