Home / 18,686.28-25,785.84-10,302.84

Finding the Fourth Proportional to 18,686.28, 25,785.84 and 10,302.84

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Solution

The fourth proportional to 18,686.28, 25,785.84 and 10,302.84 is: 14,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.28 : 25,785.84 = 10,302.84 : x
  2. Step 2: Convert to fraction form
    18,686.28/25,785.84 = 10,302.84/x
  3. Step 3: Cross multiply
    18,686.28x = 25,785.84 × 10,302.84
  4. Step 4: Simplify right side
    18,686.28x = 265,667,383.79
  5. Step 5: Solve for x
    x = 265,667,383.79/18,686.28
  6. Step 6: Final answer
    x = 14,217.24

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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.