Home / 12,310.24-16,988.13-6,721.24

Finding the Fourth Proportional to 12,310.24, 16,988.13 and 6,721.24

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Solution

The fourth proportional to 12,310.24, 16,988.13 and 6,721.24 is: 9,275.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.24 : 16,988.13 = 6,721.24 : x
  2. Step 2: Convert to fraction form
    12,310.24/16,988.13 = 6,721.24/x
  3. Step 3: Cross multiply
    12,310.24x = 16,988.13 × 6,721.24
  4. Step 4: Simplify right side
    12,310.24x = 114,181,298.88
  5. Step 5: Solve for x
    x = 114,181,298.88/12,310.24
  6. Step 6: Final answer
    x = 9,275.31

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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.