Home / 12,235.56-16,885.14-7,199.96

Finding the Fourth Proportional to 12,235.56, 16,885.14 and 7,199.96

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Solution

The fourth proportional to 12,235.56, 16,885.14 and 7,199.96 is: 9,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.56 : 16,885.14 = 7,199.96 : x
  2. Step 2: Convert to fraction form
    12,235.56/16,885.14 = 7,199.96/x
  3. Step 3: Cross multiply
    12,235.56x = 16,885.14 × 7,199.96
  4. Step 4: Simplify right side
    12,235.56x = 121,572,332.59
  5. Step 5: Solve for x
    x = 121,572,332.59/12,235.56
  6. Step 6: Final answer
    x = 9,935.98

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Double scale
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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.