Home / 12,158.26-18,230.08-4,753.89

Finding the Fourth Proportional to 12,158.26, 18,230.08 and 4,753.89

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Solution

The fourth proportional to 12,158.26, 18,230.08 and 4,753.89 is: 7,127.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.26 : 18,230.08 = 4,753.89 : x
  2. Step 2: Convert to fraction form
    12,158.26/18,230.08 = 4,753.89/x
  3. Step 3: Cross multiply
    12,158.26x = 18,230.08 × 4,753.89
  4. Step 4: Simplify right side
    12,158.26x = 86,663,840.59
  5. Step 5: Solve for x
    x = 86,663,840.59/12,158.26
  6. Step 6: Final answer
    x = 7,127.98

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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.