Home / 12,310.22-16,988.01-6,721.22

Finding the Fourth Proportional to 12,310.22, 16,988.01 and 6,721.22

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Solution

The fourth proportional to 12,310.22, 16,988.01 and 6,721.22 is: 9,275.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.22 : 16,988.01 = 6,721.22 : x
  2. Step 2: Convert to fraction form
    12,310.22/16,988.01 = 6,721.22/x
  3. Step 3: Cross multiply
    12,310.22x = 16,988.01 × 6,721.22
  4. Step 4: Simplify right side
    12,310.22x = 114,180,152.57
  5. Step 5: Solve for x
    x = 114,180,152.57/12,310.22
  6. Step 6: Final answer
    x = 9,275.23

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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.