Home / 12,549.92-17,316.60-7,242.80

Finding the Fourth Proportional to 12,549.92, 17,316.60 and 7,242.80

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Solution

The fourth proportional to 12,549.92, 17,316.60 and 7,242.80 is: 9,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,549.92 : 17,316.60 = 7,242.80 : x
  2. Step 2: Convert to fraction form
    12,549.92/17,316.60 = 7,242.80/x
  3. Step 3: Cross multiply
    12,549.92x = 17,316.60 × 7,242.80
  4. Step 4: Simplify right side
    12,549.92x = 125,420,670.48
  5. Step 5: Solve for x
    x = 125,420,670.48/12,549.92
  6. Step 6: Final answer
    x = 9,993.74

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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.