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Finding the Fourth Proportional to 13,971, 20,949.52 and 4,482.06

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Solution

The fourth proportional to 13,971, 20,949.52 and 4,482.06 is: 6,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971 : 20,949.52 = 4,482.06 : x
  2. Step 2: Convert to fraction form
    13,971/20,949.52 = 4,482.06/x
  3. Step 3: Cross multiply
    13,971x = 20,949.52 × 4,482.06
  4. Step 4: Simplify right side
    13,971x = 93,897,005.61
  5. Step 5: Solve for x
    x = 93,897,005.61/13,971
  6. Step 6: Final answer
    x = 6,720.85

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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.