Home / 8,870.20-13,288.80-4,422.76

Finding the Fourth Proportional to 8,870.20, 13,288.80 and 4,422.76

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Solution

The fourth proportional to 8,870.20, 13,288.80 and 4,422.76 is: 6,625.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.20 : 13,288.80 = 4,422.76 : x
  2. Step 2: Convert to fraction form
    8,870.20/13,288.80 = 4,422.76/x
  3. Step 3: Cross multiply
    8,870.20x = 13,288.80 × 4,422.76
  4. Step 4: Simplify right side
    8,870.20x = 58,773,173.09
  5. Step 5: Solve for x
    x = 58,773,173.09/8,870.20
  6. Step 6: Final answer
    x = 6,625.91

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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.