Home / 6,426.12-9,639.13-3,307

Finding the Fourth Proportional to 6,426.12, 9,639.13 and 3,307

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Solution

The fourth proportional to 6,426.12, 9,639.13 and 3,307 is: 4,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,426.12 : 9,639.13 = 3,307 : x
  2. Step 2: Convert to fraction form
    6,426.12/9,639.13 = 3,307/x
  3. Step 3: Cross multiply
    6,426.12x = 9,639.13 × 3,307
  4. Step 4: Simplify right side
    6,426.12x = 31,876,602.91
  5. Step 5: Solve for x
    x = 31,876,602.91/6,426.12
  6. Step 6: Final answer
    x = 4,960.47

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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.