Home / 18,721.08-28,084.50-6,236.82

Finding the Fourth Proportional to 18,721.08, 28,084.50 and 6,236.82

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Solution

The fourth proportional to 18,721.08, 28,084.50 and 6,236.82 is: 9,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.08 : 28,084.50 = 6,236.82 : x
  2. Step 2: Convert to fraction form
    18,721.08/28,084.50 = 6,236.82/x
  3. Step 3: Cross multiply
    18,721.08x = 28,084.50 × 6,236.82
  4. Step 4: Simplify right side
    18,721.08x = 175,157,971.29
  5. Step 5: Solve for x
    x = 175,157,971.29/18,721.08
  6. Step 6: Final answer
    x = 9,356.19

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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.