Home / 12,389.73-18,585.20-4,993.18

Finding the Fourth Proportional to 12,389.73, 18,585.20 and 4,993.18

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Solution

The fourth proportional to 12,389.73, 18,585.20 and 4,993.18 is: 7,490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,389.73 : 18,585.20 = 4,993.18 : x
  2. Step 2: Convert to fraction form
    12,389.73/18,585.20 = 4,993.18/x
  3. Step 3: Cross multiply
    12,389.73x = 18,585.20 × 4,993.18
  4. Step 4: Simplify right side
    12,389.73x = 92,799,248.94
  5. Step 5: Solve for x
    x = 92,799,248.94/12,389.73
  6. Step 6: Final answer
    x = 7,490.01

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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.