Home / 9,778.16-14,667.70-3,115.32

Finding the Fourth Proportional to 9,778.16, 14,667.70 and 3,115.32

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Solution

The fourth proportional to 9,778.16, 14,667.70 and 3,115.32 is: 4,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778.16 : 14,667.70 = 3,115.32 : x
  2. Step 2: Convert to fraction form
    9,778.16/14,667.70 = 3,115.32/x
  3. Step 3: Cross multiply
    9,778.16x = 14,667.70 × 3,115.32
  4. Step 4: Simplify right side
    9,778.16x = 45,694,579.16
  5. Step 5: Solve for x
    x = 45,694,579.16/9,778.16
  6. Step 6: Final answer
    x = 4,673.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.