Home / 8,917.56-12,306.07-4,938.58

Finding the Fourth Proportional to 8,917.56, 12,306.07 and 4,938.58

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Solution

The fourth proportional to 8,917.56, 12,306.07 and 4,938.58 is: 6,815.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.56 : 12,306.07 = 4,938.58 : x
  2. Step 2: Convert to fraction form
    8,917.56/12,306.07 = 4,938.58/x
  3. Step 3: Cross multiply
    8,917.56x = 12,306.07 × 4,938.58
  4. Step 4: Simplify right side
    8,917.56x = 60,774,554.29
  5. Step 5: Solve for x
    x = 60,774,554.29/8,917.56
  6. Step 6: Final answer
    x = 6,815.16

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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.