Home / 9,318.40-12,859.68-5,069.77

Finding the Fourth Proportional to 9,318.40, 12,859.68 and 5,069.77

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Solution

The fourth proportional to 9,318.40, 12,859.68 and 5,069.77 is: 6,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.40 : 12,859.68 = 5,069.77 : x
  2. Step 2: Convert to fraction form
    9,318.40/12,859.68 = 5,069.77/x
  3. Step 3: Cross multiply
    9,318.40x = 12,859.68 × 5,069.77
  4. Step 4: Simplify right side
    9,318.40x = 65,195,619.87
  5. Step 5: Solve for x
    x = 65,195,619.87/9,318.40
  6. Step 6: Final answer
    x = 6,996.44

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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.