Home / 10,526.91-15,787.20-8,673.42

Finding the Fourth Proportional to 10,526.91, 15,787.20 and 8,673.42

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Solution

The fourth proportional to 10,526.91, 15,787.20 and 8,673.42 is: 13,007.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,526.91 : 15,787.20 = 8,673.42 : x
  2. Step 2: Convert to fraction form
    10,526.91/15,787.20 = 8,673.42/x
  3. Step 3: Cross multiply
    10,526.91x = 15,787.20 × 8,673.42
  4. Step 4: Simplify right side
    10,526.91x = 136,929,016.22
  5. Step 5: Solve for x
    x = 136,929,016.22/10,526.91
  6. Step 6: Final answer
    x = 13,007.52

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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.