Home / 15,604.80-23,407.20-3,918.12

Finding the Fourth Proportional to 15,604.80, 23,407.20 and 3,918.12

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Solution

The fourth proportional to 15,604.80, 23,407.20 and 3,918.12 is: 5,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,604.80 : 23,407.20 = 3,918.12 : x
  2. Step 2: Convert to fraction form
    15,604.80/23,407.20 = 3,918.12/x
  3. Step 3: Cross multiply
    15,604.80x = 23,407.20 × 3,918.12
  4. Step 4: Simplify right side
    15,604.80x = 91,712,218.46
  5. Step 5: Solve for x
    x = 91,712,218.46/15,604.80
  6. Step 6: Final answer
    x = 5,877.18

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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.