Home / 9,318.81-12,859.82-5,069.77

Finding the Fourth Proportional to 9,318.81, 12,859.82 and 5,069.77

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Solution

The fourth proportional to 9,318.81, 12,859.82 and 5,069.77 is: 6,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.81 : 12,859.82 = 5,069.77 : x
  2. Step 2: Convert to fraction form
    9,318.81/12,859.82 = 5,069.77/x
  3. Step 3: Cross multiply
    9,318.81x = 12,859.82 × 5,069.77
  4. Step 4: Simplify right side
    9,318.81x = 65,196,329.64
  5. Step 5: Solve for x
    x = 65,196,329.64/9,318.81
  6. Step 6: Final answer
    x = 6,996.21

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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.