Home / 13,318.92-19,965-4,547.82

Finding the Fourth Proportional to 13,318.92, 19,965 and 4,547.82

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Solution

The fourth proportional to 13,318.92, 19,965 and 4,547.82 is: 6,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.92 : 19,965 = 4,547.82 : x
  2. Step 2: Convert to fraction form
    13,318.92/19,965 = 4,547.82/x
  3. Step 3: Cross multiply
    13,318.92x = 19,965 × 4,547.82
  4. Step 4: Simplify right side
    13,318.92x = 90,797,226.30
  5. Step 5: Solve for x
    x = 90,797,226.30/13,318.92
  6. Step 6: Final answer
    x = 6,817.16

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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.