Home / 9,979.58-13,770.77-5,503.07

Finding the Fourth Proportional to 9,979.58, 13,770.77 and 5,503.07

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Solution

The fourth proportional to 9,979.58, 13,770.77 and 5,503.07 is: 7,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.58 : 13,770.77 = 5,503.07 : x
  2. Step 2: Convert to fraction form
    9,979.58/13,770.77 = 5,503.07/x
  3. Step 3: Cross multiply
    9,979.58x = 13,770.77 × 5,503.07
  4. Step 4: Simplify right side
    9,979.58x = 75,781,511.26
  5. Step 5: Solve for x
    x = 75,781,511.26/9,979.58
  6. Step 6: Final answer
    x = 7,593.66

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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.