Home / 8,589.45-11,853.63-4,812.90

Finding the Fourth Proportional to 8,589.45, 11,853.63 and 4,812.90

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Solution

The fourth proportional to 8,589.45, 11,853.63 and 4,812.90 is: 6,641.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.45 : 11,853.63 = 4,812.90 : x
  2. Step 2: Convert to fraction form
    8,589.45/11,853.63 = 4,812.90/x
  3. Step 3: Cross multiply
    8,589.45x = 11,853.63 × 4,812.90
  4. Step 4: Simplify right side
    8,589.45x = 57,050,335.83
  5. Step 5: Solve for x
    x = 57,050,335.83/8,589.45
  6. Step 6: Final answer
    x = 6,641.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.