Home / 9,977.29-13,769.91-5,729.68

Finding the Fourth Proportional to 9,977.29, 13,769.91 and 5,729.68

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Solution

The fourth proportional to 9,977.29, 13,769.91 and 5,729.68 is: 7,907.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,977.29 : 13,769.91 = 5,729.68 : x
  2. Step 2: Convert to fraction form
    9,977.29/13,769.91 = 5,729.68/x
  3. Step 3: Cross multiply
    9,977.29x = 13,769.91 × 5,729.68
  4. Step 4: Simplify right side
    9,977.29x = 78,897,195.14
  5. Step 5: Solve for x
    x = 78,897,195.14/9,977.29
  6. Step 6: Final answer
    x = 7,907.68

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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.