Home / 18,896.68-28,345.02-10,186.95

Finding the Fourth Proportional to 18,896.68, 28,345.02 and 10,186.95

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Solution

The fourth proportional to 18,896.68, 28,345.02 and 10,186.95 is: 15,280.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,896.68 : 28,345.02 = 10,186.95 : x
  2. Step 2: Convert to fraction form
    18,896.68/28,345.02 = 10,186.95/x
  3. Step 3: Cross multiply
    18,896.68x = 28,345.02 × 10,186.95
  4. Step 4: Simplify right side
    18,896.68x = 288,749,301.49
  5. Step 5: Solve for x
    x = 288,749,301.49/18,896.68
  6. Step 6: Final answer
    x = 15,280.43

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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.