Home / 15,258.74-21,054.60-8,544.65

Finding the Fourth Proportional to 15,258.74, 21,054.60 and 8,544.65

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Solution

The fourth proportional to 15,258.74, 21,054.60 and 8,544.65 is: 11,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.74 : 21,054.60 = 8,544.65 : x
  2. Step 2: Convert to fraction form
    15,258.74/21,054.60 = 8,544.65/x
  3. Step 3: Cross multiply
    15,258.74x = 21,054.60 × 8,544.65
  4. Step 4: Simplify right side
    15,258.74x = 179,904,082.62
  5. Step 5: Solve for x
    x = 179,904,082.62/15,258.74
  6. Step 6: Final answer
    x = 11,790.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.