Home / 13,598.49-20,397.92-5,278.98

Finding the Fourth Proportional to 13,598.49, 20,397.92 and 5,278.98

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Solution

The fourth proportional to 13,598.49, 20,397.92 and 5,278.98 is: 7,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,598.49 : 20,397.92 = 5,278.98 : x
  2. Step 2: Convert to fraction form
    13,598.49/20,397.92 = 5,278.98/x
  3. Step 3: Cross multiply
    13,598.49x = 20,397.92 × 5,278.98
  4. Step 4: Simplify right side
    13,598.49x = 107,680,185.33
  5. Step 5: Solve for x
    x = 107,680,185.33/13,598.49
  6. Step 6: Final answer
    x = 7,918.54

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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.