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Finding the Fourth Proportional to 10,668.76, 16,003.14 and 8,840.92

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Solution

The fourth proportional to 10,668.76, 16,003.14 and 8,840.92 is: 13,261.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.76 : 16,003.14 = 8,840.92 : x
  2. Step 2: Convert to fraction form
    10,668.76/16,003.14 = 8,840.92/x
  3. Step 3: Cross multiply
    10,668.76x = 16,003.14 × 8,840.92
  4. Step 4: Simplify right side
    10,668.76x = 141,482,480.49
  5. Step 5: Solve for x
    x = 141,482,480.49/10,668.76
  6. Step 6: Final answer
    x = 13,261.38

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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.