Home / 7,639.88-10,560.69-6,373.55

Finding the Fourth Proportional to 7,639.88, 10,560.69 and 6,373.55

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Solution

The fourth proportional to 7,639.88, 10,560.69 and 6,373.55 is: 8,810.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.88 : 10,560.69 = 6,373.55 : x
  2. Step 2: Convert to fraction form
    7,639.88/10,560.69 = 6,373.55/x
  3. Step 3: Cross multiply
    7,639.88x = 10,560.69 × 6,373.55
  4. Step 4: Simplify right side
    7,639.88x = 67,309,112.15
  5. Step 5: Solve for x
    x = 67,309,112.15/7,639.88
  6. Step 6: Final answer
    x = 8,810.24

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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.