Home / 8,900.13-13,352.73-2,660.40

Finding the Fourth Proportional to 8,900.13, 13,352.73 and 2,660.40

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Solution

The fourth proportional to 8,900.13, 13,352.73 and 2,660.40 is: 3,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.13 : 13,352.73 = 2,660.40 : x
  2. Step 2: Convert to fraction form
    8,900.13/13,352.73 = 2,660.40/x
  3. Step 3: Cross multiply
    8,900.13x = 13,352.73 × 2,660.40
  4. Step 4: Simplify right side
    8,900.13x = 35,523,602.89
  5. Step 5: Solve for x
    x = 35,523,602.89/8,900.13
  6. Step 6: Final answer
    x = 3,991.36

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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.