Home / 9,979.42-13,771.70-5,503.35

Finding the Fourth Proportional to 9,979.42, 13,771.70 and 5,503.35

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Solution

The fourth proportional to 9,979.42, 13,771.70 and 5,503.35 is: 7,594.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.42 : 13,771.70 = 5,503.35 : x
  2. Step 2: Convert to fraction form
    9,979.42/13,771.70 = 5,503.35/x
  3. Step 3: Cross multiply
    9,979.42x = 13,771.70 × 5,503.35
  4. Step 4: Simplify right side
    9,979.42x = 75,790,485.20
  5. Step 5: Solve for x
    x = 75,790,485.20/9,979.42
  6. Step 6: Final answer
    x = 7,594.68

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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.