Home / 9,979.24-13,771.45-5,503.15

Finding the Fourth Proportional to 9,979.24, 13,771.45 and 5,503.15

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Solution

The fourth proportional to 9,979.24, 13,771.45 and 5,503.15 is: 7,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.24 : 13,771.45 = 5,503.15 : x
  2. Step 2: Convert to fraction form
    9,979.24/13,771.45 = 5,503.15/x
  3. Step 3: Cross multiply
    9,979.24x = 13,771.45 × 5,503.15
  4. Step 4: Simplify right side
    9,979.24x = 75,786,317.21
  5. Step 5: Solve for x
    x = 75,786,317.21/9,979.24
  6. Step 6: Final answer
    x = 7,594.40

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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.