Home / 15,448.56-21,319.08-8,375.02

Finding the Fourth Proportional to 15,448.56, 21,319.08 and 8,375.02

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Solution

The fourth proportional to 15,448.56, 21,319.08 and 8,375.02 is: 11,557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.56 : 21,319.08 = 8,375.02 : x
  2. Step 2: Convert to fraction form
    15,448.56/21,319.08 = 8,375.02/x
  3. Step 3: Cross multiply
    15,448.56x = 21,319.08 × 8,375.02
  4. Step 4: Simplify right side
    15,448.56x = 178,547,721.38
  5. Step 5: Solve for x
    x = 178,547,721.38/15,448.56
  6. Step 6: Final answer
    x = 11,557.56

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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.