Home / 9,108.78-13,633.08-6,435.17

Finding the Fourth Proportional to 9,108.78, 13,633.08 and 6,435.17

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Solution

The fourth proportional to 9,108.78, 13,633.08 and 6,435.17 is: 9,631.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.78 : 13,633.08 = 6,435.17 : x
  2. Step 2: Convert to fraction form
    9,108.78/13,633.08 = 6,435.17/x
  3. Step 3: Cross multiply
    9,108.78x = 13,633.08 × 6,435.17
  4. Step 4: Simplify right side
    9,108.78x = 87,731,119.26
  5. Step 5: Solve for x
    x = 87,731,119.26/9,108.78
  6. Step 6: Final answer
    x = 9,631.49

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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.