Home / 9,318.74-12,859.70-5,069.86

Finding the Fourth Proportional to 9,318.74, 12,859.70 and 5,069.86

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Solution

The fourth proportional to 9,318.74, 12,859.70 and 5,069.86 is: 6,996.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.74 : 12,859.70 = 5,069.86 : x
  2. Step 2: Convert to fraction form
    9,318.74/12,859.70 = 5,069.86/x
  3. Step 3: Cross multiply
    9,318.74x = 12,859.70 × 5,069.86
  4. Step 4: Simplify right side
    9,318.74x = 65,196,878.64
  5. Step 5: Solve for x
    x = 65,196,878.64/9,318.74
  6. Step 6: Final answer
    x = 6,996.32

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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.