Home / 12,785.94-17,637.84-8,800.13

Finding the Fourth Proportional to 12,785.94, 17,637.84 and 8,800.13

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Solution

The fourth proportional to 12,785.94, 17,637.84 and 8,800.13 is: 12,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.94 : 17,637.84 = 8,800.13 : x
  2. Step 2: Convert to fraction form
    12,785.94/17,637.84 = 8,800.13/x
  3. Step 3: Cross multiply
    12,785.94x = 17,637.84 × 8,800.13
  4. Step 4: Simplify right side
    12,785.94x = 155,215,329.01
  5. Step 5: Solve for x
    x = 155,215,329.01/12,785.94
  6. Step 6: Final answer
    x = 12,139.53

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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.