Home / 12,037.12-18,060.48-5,111.68

Finding the Fourth Proportional to 12,037.12, 18,060.48 and 5,111.68

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Solution

The fourth proportional to 12,037.12, 18,060.48 and 5,111.68 is: 7,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,037.12 : 18,060.48 = 5,111.68 : x
  2. Step 2: Convert to fraction form
    12,037.12/18,060.48 = 5,111.68/x
  3. Step 3: Cross multiply
    12,037.12x = 18,060.48 × 5,111.68
  4. Step 4: Simplify right side
    12,037.12x = 92,319,394.41
  5. Step 5: Solve for x
    x = 92,319,394.41/12,037.12
  6. Step 6: Final answer
    x = 7,669.56

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Double scale
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Similar ratio
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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.