Home / 12,555.66-17,329.23-8,306.94

Finding the Fourth Proportional to 12,555.66, 17,329.23 and 8,306.94

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Solution

The fourth proportional to 12,555.66, 17,329.23 and 8,306.94 is: 11,465.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.66 : 17,329.23 = 8,306.94 : x
  2. Step 2: Convert to fraction form
    12,555.66/17,329.23 = 8,306.94/x
  3. Step 3: Cross multiply
    12,555.66x = 17,329.23 × 8,306.94
  4. Step 4: Simplify right side
    12,555.66x = 143,952,873.86
  5. Step 5: Solve for x
    x = 143,952,873.86/12,555.66
  6. Step 6: Final answer
    x = 11,465.18

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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.