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Finding the Fourth Proportional to 14,002.10, 21,003.15 and 9,077.30

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Solution

The fourth proportional to 14,002.10, 21,003.15 and 9,077.30 is: 13,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.10 : 21,003.15 = 9,077.30 : x
  2. Step 2: Convert to fraction form
    14,002.10/21,003.15 = 9,077.30/x
  3. Step 3: Cross multiply
    14,002.10x = 21,003.15 × 9,077.30
  4. Step 4: Simplify right side
    14,002.10x = 190,651,893.50
  5. Step 5: Solve for x
    x = 190,651,893.50/14,002.10
  6. Step 6: Final answer
    x = 13,615.95

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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.