Home / 15,480.54-23,115.89-12,156.30

Finding the Fourth Proportional to 15,480.54, 23,115.89 and 12,156.30

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Solution

The fourth proportional to 15,480.54, 23,115.89 and 12,156.30 is: 18,152.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.54 : 23,115.89 = 12,156.30 : x
  2. Step 2: Convert to fraction form
    15,480.54/23,115.89 = 12,156.30/x
  3. Step 3: Cross multiply
    15,480.54x = 23,115.89 × 12,156.30
  4. Step 4: Simplify right side
    15,480.54x = 281,003,724.00
  5. Step 5: Solve for x
    x = 281,003,724.00/15,480.54
  6. Step 6: Final answer
    x = 18,152.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.