Home / 9,456.21-14,172.15-8,865.72

Finding the Fourth Proportional to 9,456.21, 14,172.15 and 8,865.72

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Solution

The fourth proportional to 9,456.21, 14,172.15 and 8,865.72 is: 13,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,456.21 : 14,172.15 = 8,865.72 : x
  2. Step 2: Convert to fraction form
    9,456.21/14,172.15 = 8,865.72/x
  3. Step 3: Cross multiply
    9,456.21x = 14,172.15 × 8,865.72
  4. Step 4: Simplify right side
    9,456.21x = 125,646,313.70
  5. Step 5: Solve for x
    x = 125,646,313.70/9,456.21
  6. Step 6: Final answer
    x = 13,287.17

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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.