Home / 12,437.40-17,159.94-7,397.58

Finding the Fourth Proportional to 12,437.40, 17,159.94 and 7,397.58

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Solution

The fourth proportional to 12,437.40, 17,159.94 and 7,397.58 is: 10,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.40 : 17,159.94 = 7,397.58 : x
  2. Step 2: Convert to fraction form
    12,437.40/17,159.94 = 7,397.58/x
  3. Step 3: Cross multiply
    12,437.40x = 17,159.94 × 7,397.58
  4. Step 4: Simplify right side
    12,437.40x = 126,942,028.95
  5. Step 5: Solve for x
    x = 126,942,028.95/12,437.40
  6. Step 6: Final answer
    x = 10,206.48

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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.