Home / 15,655.44-23,448.12-12,121.32

Finding the Fourth Proportional to 15,655.44, 23,448.12 and 12,121.32

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Solution

The fourth proportional to 15,655.44, 23,448.12 and 12,121.32 is: 18,154.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.44 : 23,448.12 = 12,121.32 : x
  2. Step 2: Convert to fraction form
    15,655.44/23,448.12 = 12,121.32/x
  3. Step 3: Cross multiply
    15,655.44x = 23,448.12 × 12,121.32
  4. Step 4: Simplify right side
    15,655.44x = 284,222,165.92
  5. Step 5: Solve for x
    x = 284,222,165.92/15,655.44
  6. Step 6: Final answer
    x = 18,154.85

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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.