Home / 8,258.18-11,395.89-4,721.78

Finding the Fourth Proportional to 8,258.18, 11,395.89 and 4,721.78

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Solution

The fourth proportional to 8,258.18, 11,395.89 and 4,721.78 is: 6,515.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.18 : 11,395.89 = 4,721.78 : x
  2. Step 2: Convert to fraction form
    8,258.18/11,395.89 = 4,721.78/x
  3. Step 3: Cross multiply
    8,258.18x = 11,395.89 × 4,721.78
  4. Step 4: Simplify right side
    8,258.18x = 53,808,885.48
  5. Step 5: Solve for x
    x = 53,808,885.48/8,258.18
  6. Step 6: Final answer
    x = 6,515.83

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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.