Home / 15,667.20-23,500.64-5,278.88

Finding the Fourth Proportional to 15,667.20, 23,500.64 and 5,278.88

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Solution

The fourth proportional to 15,667.20, 23,500.64 and 5,278.88 is: 7,918.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667.20 : 23,500.64 = 5,278.88 : x
  2. Step 2: Convert to fraction form
    15,667.20/23,500.64 = 5,278.88/x
  3. Step 3: Cross multiply
    15,667.20x = 23,500.64 × 5,278.88
  4. Step 4: Simplify right side
    15,667.20x = 124,057,058.48
  5. Step 5: Solve for x
    x = 124,057,058.48/15,667.20
  6. Step 6: Final answer
    x = 7,918.27

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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.