Home / 15,368.88-23,047.56-12,120.24

Finding the Fourth Proportional to 15,368.88, 23,047.56 and 12,120.24

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Solution

The fourth proportional to 15,368.88, 23,047.56 and 12,120.24 is: 18,175.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,368.88 : 23,047.56 = 12,120.24 : x
  2. Step 2: Convert to fraction form
    15,368.88/23,047.56 = 12,120.24/x
  3. Step 3: Cross multiply
    15,368.88x = 23,047.56 × 12,120.24
  4. Step 4: Simplify right side
    15,368.88x = 279,341,958.61
  5. Step 5: Solve for x
    x = 279,341,958.61/15,368.88
  6. Step 6: Final answer
    x = 18,175.82

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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.