Home / 15,877.31-23,815.81-9,639.05

Finding the Fourth Proportional to 15,877.31, 23,815.81 and 9,639.05

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Solution

The fourth proportional to 15,877.31, 23,815.81 and 9,639.05 is: 14,458.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.31 : 23,815.81 = 9,639.05 : x
  2. Step 2: Convert to fraction form
    15,877.31/23,815.81 = 9,639.05/x
  3. Step 3: Cross multiply
    15,877.31x = 23,815.81 × 9,639.05
  4. Step 4: Simplify right side
    15,877.31x = 229,561,783.38
  5. Step 5: Solve for x
    x = 229,561,783.38/15,877.31
  6. Step 6: Final answer
    x = 14,458.48

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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.