Home / 8,989.06-13,510.50-7,439.02

Finding the Fourth Proportional to 8,989.06, 13,510.50 and 7,439.02

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Solution

The fourth proportional to 8,989.06, 13,510.50 and 7,439.02 is: 11,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,989.06 : 13,510.50 = 7,439.02 : x
  2. Step 2: Convert to fraction form
    8,989.06/13,510.50 = 7,439.02/x
  3. Step 3: Cross multiply
    8,989.06x = 13,510.50 × 7,439.02
  4. Step 4: Simplify right side
    8,989.06x = 100,504,879.71
  5. Step 5: Solve for x
    x = 100,504,879.71/8,989.06
  6. Step 6: Final answer
    x = 11,180.80

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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.