Home / 8,176.38-12,264.48-5,415.41

Finding the Fourth Proportional to 8,176.38, 12,264.48 and 5,415.41

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Solution

The fourth proportional to 8,176.38, 12,264.48 and 5,415.41 is: 8,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,176.38 : 12,264.48 = 5,415.41 : x
  2. Step 2: Convert to fraction form
    8,176.38/12,264.48 = 5,415.41/x
  3. Step 3: Cross multiply
    8,176.38x = 12,264.48 × 5,415.41
  4. Step 4: Simplify right side
    8,176.38x = 66,417,126.31
  5. Step 5: Solve for x
    x = 66,417,126.31/8,176.38
  6. Step 6: Final answer
    x = 8,123.05

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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.