Home / 18,686.52-25,786.08-10,302.84

Finding the Fourth Proportional to 18,686.52, 25,786.08 and 10,302.84

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Solution

The fourth proportional to 18,686.52, 25,786.08 and 10,302.84 is: 14,217.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.52 : 25,786.08 = 10,302.84 : x
  2. Step 2: Convert to fraction form
    18,686.52/25,786.08 = 10,302.84/x
  3. Step 3: Cross multiply
    18,686.52x = 25,786.08 × 10,302.84
  4. Step 4: Simplify right side
    18,686.52x = 265,669,856.47
  5. Step 5: Solve for x
    x = 265,669,856.47/18,686.52
  6. Step 6: Final answer
    x = 14,217.19

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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.