Home / 18,685.13-25,785.50-10,727.87

Finding the Fourth Proportional to 18,685.13, 25,785.50 and 10,727.87

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Solution

The fourth proportional to 18,685.13, 25,785.50 and 10,727.87 is: 14,804.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.13 : 25,785.50 = 10,727.87 : x
  2. Step 2: Convert to fraction form
    18,685.13/25,785.50 = 10,727.87/x
  3. Step 3: Cross multiply
    18,685.13x = 25,785.50 × 10,727.87
  4. Step 4: Simplify right side
    18,685.13x = 276,623,309.32
  5. Step 5: Solve for x
    x = 276,623,309.32/18,685.13
  6. Step 6: Final answer
    x = 14,804.47

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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.