Home / 12,497.60-17,245.70-7,191.38

Finding the Fourth Proportional to 12,497.60, 17,245.70 and 7,191.38

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Solution

The fourth proportional to 12,497.60, 17,245.70 and 7,191.38 is: 9,923.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,497.60 : 17,245.70 = 7,191.38 : x
  2. Step 2: Convert to fraction form
    12,497.60/17,245.70 = 7,191.38/x
  3. Step 3: Cross multiply
    12,497.60x = 17,245.70 × 7,191.38
  4. Step 4: Simplify right side
    12,497.60x = 124,020,259.88
  5. Step 5: Solve for x
    x = 124,020,259.88/12,497.60
  6. Step 6: Final answer
    x = 9,923.53

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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.