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Finding the Fourth Proportional to 14,000.88, 21,001.16 and 5,678.92

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Solution

The fourth proportional to 14,000.88, 21,001.16 and 5,678.92 is: 8,518.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.88 : 21,001.16 = 5,678.92 : x
  2. Step 2: Convert to fraction form
    14,000.88/21,001.16 = 5,678.92/x
  3. Step 3: Cross multiply
    14,000.88x = 21,001.16 × 5,678.92
  4. Step 4: Simplify right side
    14,000.88x = 119,263,907.55
  5. Step 5: Solve for x
    x = 119,263,907.55/14,000.88
  6. Step 6: Final answer
    x = 8,518.32

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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.