Home / 8,555.07-12,803.40-7,169.97

Finding the Fourth Proportional to 8,555.07, 12,803.40 and 7,169.97

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Solution

The fourth proportional to 8,555.07, 12,803.40 and 7,169.97 is: 10,730.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.07 : 12,803.40 = 7,169.97 : x
  2. Step 2: Convert to fraction form
    8,555.07/12,803.40 = 7,169.97/x
  3. Step 3: Cross multiply
    8,555.07x = 12,803.40 × 7,169.97
  4. Step 4: Simplify right side
    8,555.07x = 91,799,993.90
  5. Step 5: Solve for x
    x = 91,799,993.90/8,555.07
  6. Step 6: Final answer
    x = 10,730.48

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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.