Home / 9,979.20-13,773.06-8,298.36

Finding the Fourth Proportional to 9,979.20, 13,773.06 and 8,298.36

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Solution

The fourth proportional to 9,979.20, 13,773.06 and 8,298.36 is: 11,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.20 : 13,773.06 = 8,298.36 : x
  2. Step 2: Convert to fraction form
    9,979.20/13,773.06 = 8,298.36/x
  3. Step 3: Cross multiply
    9,979.20x = 13,773.06 × 8,298.36
  4. Step 4: Simplify right side
    9,979.20x = 114,293,810.18
  5. Step 5: Solve for x
    x = 114,293,810.18/9,979.20
  6. Step 6: Final answer
    x = 11,453.20

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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.