Home / 8,708.66-12,018.55-5,306.97

Finding the Fourth Proportional to 8,708.66, 12,018.55 and 5,306.97

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Solution

The fourth proportional to 8,708.66, 12,018.55 and 5,306.97 is: 7,323.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.66 : 12,018.55 = 5,306.97 : x
  2. Step 2: Convert to fraction form
    8,708.66/12,018.55 = 5,306.97/x
  3. Step 3: Cross multiply
    8,708.66x = 12,018.55 × 5,306.97
  4. Step 4: Simplify right side
    8,708.66x = 63,782,073.37
  5. Step 5: Solve for x
    x = 63,782,073.37/8,708.66
  6. Step 6: Final answer
    x = 7,323.98

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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.