Home / 25,667.52-38,502.64-8,138.72

Finding the Fourth Proportional to 25,667.52, 38,502.64 and 8,138.72

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Solution

The fourth proportional to 25,667.52, 38,502.64 and 8,138.72 is: 12,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,667.52 : 38,502.64 = 8,138.72 : x
  2. Step 2: Convert to fraction form
    25,667.52/38,502.64 = 8,138.72/x
  3. Step 3: Cross multiply
    25,667.52x = 38,502.64 × 8,138.72
  4. Step 4: Simplify right side
    25,667.52x = 313,362,206.22
  5. Step 5: Solve for x
    x = 313,362,206.22/25,667.52
  6. Step 6: Final answer
    x = 12,208.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.