Home / 16,386.12-24,579.36-7,618.68

Finding the Fourth Proportional to 16,386.12, 24,579.36 and 7,618.68

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Solution

The fourth proportional to 16,386.12, 24,579.36 and 7,618.68 is: 11,428.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,386.12 : 24,579.36 = 7,618.68 : x
  2. Step 2: Convert to fraction form
    16,386.12/24,579.36 = 7,618.68/x
  3. Step 3: Cross multiply
    16,386.12x = 24,579.36 × 7,618.68
  4. Step 4: Simplify right side
    16,386.12x = 187,262,278.44
  5. Step 5: Solve for x
    x = 187,262,278.44/16,386.12
  6. Step 6: Final answer
    x = 11,428.10

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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.