Home / 8,866.14-12,239.36-6,315.66

Finding the Fourth Proportional to 8,866.14, 12,239.36 and 6,315.66

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Solution

The fourth proportional to 8,866.14, 12,239.36 and 6,315.66 is: 8,718.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.14 : 12,239.36 = 6,315.66 : x
  2. Step 2: Convert to fraction form
    8,866.14/12,239.36 = 6,315.66/x
  3. Step 3: Cross multiply
    8,866.14x = 12,239.36 × 6,315.66
  4. Step 4: Simplify right side
    8,866.14x = 77,299,604.80
  5. Step 5: Solve for x
    x = 77,299,604.80/8,866.14
  6. Step 6: Final answer
    x = 8,718.52

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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.