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Finding the Fourth Proportional to 8,983.06, 13,410.41 and 8,921.11

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Solution

The fourth proportional to 8,983.06, 13,410.41 and 8,921.11 is: 13,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,983.06 : 13,410.41 = 8,921.11 : x
  2. Step 2: Convert to fraction form
    8,983.06/13,410.41 = 8,921.11/x
  3. Step 3: Cross multiply
    8,983.06x = 13,410.41 × 8,921.11
  4. Step 4: Simplify right side
    8,983.06x = 119,635,742.76
  5. Step 5: Solve for x
    x = 119,635,742.76/8,983.06
  6. Step 6: Final answer
    x = 13,317.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.