Home / 6,988.32-10,472.88-3,863.64

Finding the Fourth Proportional to 6,988.32, 10,472.88 and 3,863.64

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Solution

The fourth proportional to 6,988.32, 10,472.88 and 3,863.64 is: 5,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.32 : 10,472.88 = 3,863.64 : x
  2. Step 2: Convert to fraction form
    6,988.32/10,472.88 = 3,863.64/x
  3. Step 3: Cross multiply
    6,988.32x = 10,472.88 × 3,863.64
  4. Step 4: Simplify right side
    6,988.32x = 40,463,438.08
  5. Step 5: Solve for x
    x = 40,463,438.08/6,988.32
  6. Step 6: Final answer
    x = 5,790.15

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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.