Home / 15,581.16-23,376.24-7,686.06

Finding the Fourth Proportional to 15,581.16, 23,376.24 and 7,686.06

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Solution

The fourth proportional to 15,581.16, 23,376.24 and 7,686.06 is: 11,531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.16 : 23,376.24 = 7,686.06 : x
  2. Step 2: Convert to fraction form
    15,581.16/23,376.24 = 7,686.06/x
  3. Step 3: Cross multiply
    15,581.16x = 23,376.24 × 7,686.06
  4. Step 4: Simplify right side
    15,581.16x = 179,671,183.21
  5. Step 5: Solve for x
    x = 179,671,183.21/15,581.16
  6. Step 6: Final answer
    x = 11,531.31

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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.