Home / 18,658.49-25,746.66-11,103.78

Finding the Fourth Proportional to 18,658.49, 25,746.66 and 11,103.78

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Solution

The fourth proportional to 18,658.49, 25,746.66 and 11,103.78 is: 15,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.49 : 25,746.66 = 11,103.78 : x
  2. Step 2: Convert to fraction form
    18,658.49/25,746.66 = 11,103.78/x
  3. Step 3: Cross multiply
    18,658.49x = 25,746.66 × 11,103.78
  4. Step 4: Simplify right side
    18,658.49x = 285,885,344.92
  5. Step 5: Solve for x
    x = 285,885,344.92/18,658.49
  6. Step 6: Final answer
    x = 15,322.00

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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.