Home / 18,383.90-25,370.04-13,776.52

Finding the Fourth Proportional to 18,383.90, 25,370.04 and 13,776.52

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Solution

The fourth proportional to 18,383.90, 25,370.04 and 13,776.52 is: 19,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.90 : 25,370.04 = 13,776.52 : x
  2. Step 2: Convert to fraction form
    18,383.90/25,370.04 = 13,776.52/x
  3. Step 3: Cross multiply
    18,383.90x = 25,370.04 × 13,776.52
  4. Step 4: Simplify right side
    18,383.90x = 349,510,863.46
  5. Step 5: Solve for x
    x = 349,510,863.46/18,383.90
  6. Step 6: Final answer
    x = 19,011.79

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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.