Home / 12,015.95-18,023.92-8,749.82

Finding the Fourth Proportional to 12,015.95, 18,023.92 and 8,749.82

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Solution

The fourth proportional to 12,015.95, 18,023.92 and 8,749.82 is: 13,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.95 : 18,023.92 = 8,749.82 : x
  2. Step 2: Convert to fraction form
    12,015.95/18,023.92 = 8,749.82/x
  3. Step 3: Cross multiply
    12,015.95x = 18,023.92 × 8,749.82
  4. Step 4: Simplify right side
    12,015.95x = 157,706,011.95
  5. Step 5: Solve for x
    x = 157,706,011.95/12,015.95
  6. Step 6: Final answer
    x = 13,124.72

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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.