Home / 15,350.28-21,184.62-8,635.51

Finding the Fourth Proportional to 15,350.28, 21,184.62 and 8,635.51

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Solution

The fourth proportional to 15,350.28, 21,184.62 and 8,635.51 is: 11,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.28 : 21,184.62 = 8,635.51 : x
  2. Step 2: Convert to fraction form
    15,350.28/21,184.62 = 8,635.51/x
  3. Step 3: Cross multiply
    15,350.28x = 21,184.62 × 8,635.51
  4. Step 4: Simplify right side
    15,350.28x = 182,940,024.34
  5. Step 5: Solve for x
    x = 182,940,024.34/15,350.28
  6. Step 6: Final answer
    x = 11,917.70

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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.