Home / 8,916.19-13,368.81-3,979.04

Finding the Fourth Proportional to 8,916.19, 13,368.81 and 3,979.04

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Solution

The fourth proportional to 8,916.19, 13,368.81 and 3,979.04 is: 5,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.19 : 13,368.81 = 3,979.04 : x
  2. Step 2: Convert to fraction form
    8,916.19/13,368.81 = 3,979.04/x
  3. Step 3: Cross multiply
    8,916.19x = 13,368.81 × 3,979.04
  4. Step 4: Simplify right side
    8,916.19x = 53,194,962.90
  5. Step 5: Solve for x
    x = 53,194,962.90/8,916.19
  6. Step 6: Final answer
    x = 5,966.11

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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.