Home / 11,565.16-17,349.90-4,640.20

Finding the Fourth Proportional to 11,565.16, 17,349.90 and 4,640.20

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Solution

The fourth proportional to 11,565.16, 17,349.90 and 4,640.20 is: 6,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,565.16 : 17,349.90 = 4,640.20 : x
  2. Step 2: Convert to fraction form
    11,565.16/17,349.90 = 4,640.20/x
  3. Step 3: Cross multiply
    11,565.16x = 17,349.90 × 4,640.20
  4. Step 4: Simplify right side
    11,565.16x = 80,507,005.98
  5. Step 5: Solve for x
    x = 80,507,005.98/11,565.16
  6. Step 6: Final answer
    x = 6,961.17

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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.