Home / 8,171.34-11,275.80-4,635.12

Finding the Fourth Proportional to 8,171.34, 11,275.80 and 4,635.12

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Solution

The fourth proportional to 8,171.34, 11,275.80 and 4,635.12 is: 6,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,171.34 : 11,275.80 = 4,635.12 : x
  2. Step 2: Convert to fraction form
    8,171.34/11,275.80 = 4,635.12/x
  3. Step 3: Cross multiply
    8,171.34x = 11,275.80 × 4,635.12
  4. Step 4: Simplify right side
    8,171.34x = 52,264,686.10
  5. Step 5: Solve for x
    x = 52,264,686.10/8,171.34
  6. Step 6: Final answer
    x = 6,396.10

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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.