Home / 8,918.79-12,309.98-5,934.75

Finding the Fourth Proportional to 8,918.79, 12,309.98 and 5,934.75

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Solution

The fourth proportional to 8,918.79, 12,309.98 and 5,934.75 is: 8,191.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.79 : 12,309.98 = 5,934.75 : x
  2. Step 2: Convert to fraction form
    8,918.79/12,309.98 = 5,934.75/x
  3. Step 3: Cross multiply
    8,918.79x = 12,309.98 × 5,934.75
  4. Step 4: Simplify right side
    8,918.79x = 73,056,624.13
  5. Step 5: Solve for x
    x = 73,056,624.13/8,918.79
  6. Step 6: Final answer
    x = 8,191.32

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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.