Home / 12,548.42-17,328.53-8,079.95

Finding the Fourth Proportional to 12,548.42, 17,328.53 and 8,079.95

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Solution

The fourth proportional to 12,548.42, 17,328.53 and 8,079.95 is: 11,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,548.42 : 17,328.53 = 8,079.95 : x
  2. Step 2: Convert to fraction form
    12,548.42/17,328.53 = 8,079.95/x
  3. Step 3: Cross multiply
    12,548.42x = 17,328.53 × 8,079.95
  4. Step 4: Simplify right side
    12,548.42x = 140,013,719.49
  5. Step 5: Solve for x
    x = 140,013,719.49/12,548.42
  6. Step 6: Final answer
    x = 11,157.88

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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.