Home / 16,751.45-23,121.15-9,681.95

Finding the Fourth Proportional to 16,751.45, 23,121.15 and 9,681.95

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Solution

The fourth proportional to 16,751.45, 23,121.15 and 9,681.95 is: 13,363.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,751.45 : 23,121.15 = 9,681.95 : x
  2. Step 2: Convert to fraction form
    16,751.45/23,121.15 = 9,681.95/x
  3. Step 3: Cross multiply
    16,751.45x = 23,121.15 × 9,681.95
  4. Step 4: Simplify right side
    16,751.45x = 223,857,818.24
  5. Step 5: Solve for x
    x = 223,857,818.24/16,751.45
  6. Step 6: Final answer
    x = 13,363.49

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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.