Home / 8,988.72-13,465.29-4,238.38

Finding the Fourth Proportional to 8,988.72, 13,465.29 and 4,238.38

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Solution

The fourth proportional to 8,988.72, 13,465.29 and 4,238.38 is: 6,349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.72 : 13,465.29 = 4,238.38 : x
  2. Step 2: Convert to fraction form
    8,988.72/13,465.29 = 4,238.38/x
  3. Step 3: Cross multiply
    8,988.72x = 13,465.29 × 4,238.38
  4. Step 4: Simplify right side
    8,988.72x = 57,070,948.97
  5. Step 5: Solve for x
    x = 57,070,948.97/8,988.72
  6. Step 6: Final answer
    x = 6,349.17

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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.