Home / 9,206.39-12,616.29-8,320.66

Finding the Fourth Proportional to 9,206.39, 12,616.29 and 8,320.66

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Solution

The fourth proportional to 9,206.39, 12,616.29 and 8,320.66 is: 11,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.39 : 12,616.29 = 8,320.66 : x
  2. Step 2: Convert to fraction form
    9,206.39/12,616.29 = 8,320.66/x
  3. Step 3: Cross multiply
    9,206.39x = 12,616.29 × 8,320.66
  4. Step 4: Simplify right side
    9,206.39x = 104,975,828.01
  5. Step 5: Solve for x
    x = 104,975,828.01/9,206.39
  6. Step 6: Final answer
    x = 11,402.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.