Home / 12,278.52-18,417.51-5,353.02

Finding the Fourth Proportional to 12,278.52, 18,417.51 and 5,353.02

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Solution

The fourth proportional to 12,278.52, 18,417.51 and 5,353.02 is: 8,029.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278.52 : 18,417.51 = 5,353.02 : x
  2. Step 2: Convert to fraction form
    12,278.52/18,417.51 = 5,353.02/x
  3. Step 3: Cross multiply
    12,278.52x = 18,417.51 × 5,353.02
  4. Step 4: Simplify right side
    12,278.52x = 98,589,299.38
  5. Step 5: Solve for x
    x = 98,589,299.38/12,278.52
  6. Step 6: Final answer
    x = 8,029.41

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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.