Home / 13,567.49-18,722.69-7,517.48

Finding the Fourth Proportional to 13,567.49, 18,722.69 and 7,517.48

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Solution

The fourth proportional to 13,567.49, 18,722.69 and 7,517.48 is: 10,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.49 : 18,722.69 = 7,517.48 : x
  2. Step 2: Convert to fraction form
    13,567.49/18,722.69 = 7,517.48/x
  3. Step 3: Cross multiply
    13,567.49x = 18,722.69 × 7,517.48
  4. Step 4: Simplify right side
    13,567.49x = 140,747,316.42
  5. Step 5: Solve for x
    x = 140,747,316.42/13,567.49
  6. Step 6: Final answer
    x = 10,373.87

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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.