Home / 15,913.62-23,878.56-7,146.72

Finding the Fourth Proportional to 15,913.62, 23,878.56 and 7,146.72

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Solution

The fourth proportional to 15,913.62, 23,878.56 and 7,146.72 is: 10,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.62 : 23,878.56 = 7,146.72 : x
  2. Step 2: Convert to fraction form
    15,913.62/23,878.56 = 7,146.72/x
  3. Step 3: Cross multiply
    15,913.62x = 23,878.56 × 7,146.72
  4. Step 4: Simplify right side
    15,913.62x = 170,653,382.32
  5. Step 5: Solve for x
    x = 170,653,382.32/15,913.62
  6. Step 6: Final answer
    x = 10,723.73

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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.