Home / 10,517.96-15,781.80-7,237.46

Finding the Fourth Proportional to 10,517.96, 15,781.80 and 7,237.46

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Solution

The fourth proportional to 10,517.96, 15,781.80 and 7,237.46 is: 10,859.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.96 : 15,781.80 = 7,237.46 : x
  2. Step 2: Convert to fraction form
    10,517.96/15,781.80 = 7,237.46/x
  3. Step 3: Cross multiply
    10,517.96x = 15,781.80 × 7,237.46
  4. Step 4: Simplify right side
    10,517.96x = 114,220,146.23
  5. Step 5: Solve for x
    x = 114,220,146.23/10,517.96
  6. Step 6: Final answer
    x = 10,859.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.