Home / 8,787.18-13,181.45-2,547.29

Finding the Fourth Proportional to 8,787.18, 13,181.45 and 2,547.29

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Solution

The fourth proportional to 8,787.18, 13,181.45 and 2,547.29 is: 3,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.18 : 13,181.45 = 2,547.29 : x
  2. Step 2: Convert to fraction form
    8,787.18/13,181.45 = 2,547.29/x
  3. Step 3: Cross multiply
    8,787.18x = 13,181.45 × 2,547.29
  4. Step 4: Simplify right side
    8,787.18x = 33,576,897.13
  5. Step 5: Solve for x
    x = 33,576,897.13/8,787.18
  6. Step 6: Final answer
    x = 3,821.12

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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.