Home / 8,326.40-11,489.04-4,970.57

Finding the Fourth Proportional to 8,326.40, 11,489.04 and 4,970.57

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Solution

The fourth proportional to 8,326.40, 11,489.04 and 4,970.57 is: 6,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.40 : 11,489.04 = 4,970.57 : x
  2. Step 2: Convert to fraction form
    8,326.40/11,489.04 = 4,970.57/x
  3. Step 3: Cross multiply
    8,326.40x = 11,489.04 × 4,970.57
  4. Step 4: Simplify right side
    8,326.40x = 57,107,020.11
  5. Step 5: Solve for x
    x = 57,107,020.11/8,326.40
  6. Step 6: Final answer
    x = 6,858.55

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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.