Home / 12,265.29-18,399.65-4,870.49

Finding the Fourth Proportional to 12,265.29, 18,399.65 and 4,870.49

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Solution

The fourth proportional to 12,265.29, 18,399.65 and 4,870.49 is: 7,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,265.29 : 18,399.65 = 4,870.49 : x
  2. Step 2: Convert to fraction form
    12,265.29/18,399.65 = 4,870.49/x
  3. Step 3: Cross multiply
    12,265.29x = 18,399.65 × 4,870.49
  4. Step 4: Simplify right side
    12,265.29x = 89,615,194.98
  5. Step 5: Solve for x
    x = 89,615,194.98/12,265.29
  6. Step 6: Final answer
    x = 7,306.41

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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.