Home / 8,560.20-12,840.18-2,716.86

Finding the Fourth Proportional to 8,560.20, 12,840.18 and 2,716.86

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Solution

The fourth proportional to 8,560.20, 12,840.18 and 2,716.86 is: 4,075.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,560.20 : 12,840.18 = 2,716.86 : x
  2. Step 2: Convert to fraction form
    8,560.20/12,840.18 = 2,716.86/x
  3. Step 3: Cross multiply
    8,560.20x = 12,840.18 × 2,716.86
  4. Step 4: Simplify right side
    8,560.20x = 34,884,971.43
  5. Step 5: Solve for x
    x = 34,884,971.43/8,560.20
  6. Step 6: Final answer
    x = 4,075.25

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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.