Home / 15,448.77-21,319.38-8,375.13

Finding the Fourth Proportional to 15,448.77, 21,319.38 and 8,375.13

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Solution

The fourth proportional to 15,448.77, 21,319.38 and 8,375.13 is: 11,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,448.77 : 21,319.38 = 8,375.13 : x
  2. Step 2: Convert to fraction form
    15,448.77/21,319.38 = 8,375.13/x
  3. Step 3: Cross multiply
    15,448.77x = 21,319.38 × 8,375.13
  4. Step 4: Simplify right side
    15,448.77x = 178,552,579.02
  5. Step 5: Solve for x
    x = 178,552,579.02/15,448.77
  6. Step 6: Final answer
    x = 11,557.72

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1.5x scale

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.