Home / 9,318.85-13,971.49-4,385.75

Finding the Fourth Proportional to 9,318.85, 13,971.49 and 4,385.75

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Solution

The fourth proportional to 9,318.85, 13,971.49 and 4,385.75 is: 6,575.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.85 : 13,971.49 = 4,385.75 : x
  2. Step 2: Convert to fraction form
    9,318.85/13,971.49 = 4,385.75/x
  3. Step 3: Cross multiply
    9,318.85x = 13,971.49 × 4,385.75
  4. Step 4: Simplify right side
    9,318.85x = 61,275,381.45
  5. Step 5: Solve for x
    x = 61,275,381.45/9,318.85
  6. Step 6: Final answer
    x = 6,575.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.