Home / 8,309.51-12,456.57-4,359.95

Finding the Fourth Proportional to 8,309.51, 12,456.57 and 4,359.95

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Solution

The fourth proportional to 8,309.51, 12,456.57 and 4,359.95 is: 6,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.51 : 12,456.57 = 4,359.95 : x
  2. Step 2: Convert to fraction form
    8,309.51/12,456.57 = 4,359.95/x
  3. Step 3: Cross multiply
    8,309.51x = 12,456.57 × 4,359.95
  4. Step 4: Simplify right side
    8,309.51x = 54,310,022.37
  5. Step 5: Solve for x
    x = 54,310,022.37/8,309.51
  6. Step 6: Final answer
    x = 6,535.89

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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.