Home / 8,901.12-13,352.01-2,661.21

Finding the Fourth Proportional to 8,901.12, 13,352.01 and 2,661.21

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Solution

The fourth proportional to 8,901.12, 13,352.01 and 2,661.21 is: 3,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,901.12 : 13,352.01 = 2,661.21 : x
  2. Step 2: Convert to fraction form
    8,901.12/13,352.01 = 2,661.21/x
  3. Step 3: Cross multiply
    8,901.12x = 13,352.01 × 2,661.21
  4. Step 4: Simplify right side
    8,901.12x = 35,532,502.53
  5. Step 5: Solve for x
    x = 35,532,502.53/8,901.12
  6. Step 6: Final answer
    x = 3,991.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.