Home / 8,904.60-12,286.14-5,757

Finding the Fourth Proportional to 8,904.60, 12,286.14 and 5,757

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Solution

The fourth proportional to 8,904.60, 12,286.14 and 5,757 is: 7,943.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.60 : 12,286.14 = 5,757 : x
  2. Step 2: Convert to fraction form
    8,904.60/12,286.14 = 5,757/x
  3. Step 3: Cross multiply
    8,904.60x = 12,286.14 × 5,757
  4. Step 4: Simplify right side
    8,904.60x = 70,731,307.98
  5. Step 5: Solve for x
    x = 70,731,307.98/8,904.60
  6. Step 6: Final answer
    x = 7,943.23

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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.