Home / 12,657.53-18,985.82-3,892.23

Finding the Fourth Proportional to 12,657.53, 18,985.82 and 3,892.23

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Solution

The fourth proportional to 12,657.53, 18,985.82 and 3,892.23 is: 5,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.53 : 18,985.82 = 3,892.23 : x
  2. Step 2: Convert to fraction form
    12,657.53/18,985.82 = 3,892.23/x
  3. Step 3: Cross multiply
    12,657.53x = 18,985.82 × 3,892.23
  4. Step 4: Simplify right side
    12,657.53x = 73,897,158.72
  5. Step 5: Solve for x
    x = 73,897,158.72/12,657.53
  6. Step 6: Final answer
    x = 5,838.20

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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.