Home / 11,931.65-17,870.21-5,696.04

Finding the Fourth Proportional to 11,931.65, 17,870.21 and 5,696.04

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Solution

The fourth proportional to 11,931.65, 17,870.21 and 5,696.04 is: 8,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.65 : 17,870.21 = 5,696.04 : x
  2. Step 2: Convert to fraction form
    11,931.65/17,870.21 = 5,696.04/x
  3. Step 3: Cross multiply
    11,931.65x = 17,870.21 × 5,696.04
  4. Step 4: Simplify right side
    11,931.65x = 101,789,430.97
  5. Step 5: Solve for x
    x = 101,789,430.97/11,931.65
  6. Step 6: Final answer
    x = 8,531.04

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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.