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Finding the Fourth Proportional to 13,992.66, 20,988.99 and 4,630.17

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Solution

The fourth proportional to 13,992.66, 20,988.99 and 4,630.17 is: 6,945.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.66 : 20,988.99 = 4,630.17 : x
  2. Step 2: Convert to fraction form
    13,992.66/20,988.99 = 4,630.17/x
  3. Step 3: Cross multiply
    13,992.66x = 20,988.99 × 4,630.17
  4. Step 4: Simplify right side
    13,992.66x = 97,182,591.83
  5. Step 5: Solve for x
    x = 97,182,591.83/13,992.66
  6. Step 6: Final answer
    x = 6,945.26

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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.