Home / 8,135.79-12,203.67-2,589.13

Finding the Fourth Proportional to 8,135.79, 12,203.67 and 2,589.13

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Solution

The fourth proportional to 8,135.79, 12,203.67 and 2,589.13 is: 3,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.79 : 12,203.67 = 2,589.13 : x
  2. Step 2: Convert to fraction form
    8,135.79/12,203.67 = 2,589.13/x
  3. Step 3: Cross multiply
    8,135.79x = 12,203.67 × 2,589.13
  4. Step 4: Simplify right side
    8,135.79x = 31,596,888.11
  5. Step 5: Solve for x
    x = 31,596,888.11/8,135.79
  6. Step 6: Final answer
    x = 3,883.69

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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.