Home / 12,015.63-18,023.45-4,618.71

Finding the Fourth Proportional to 12,015.63, 18,023.45 and 4,618.71

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Solution

The fourth proportional to 12,015.63, 18,023.45 and 4,618.71 is: 6,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.63 : 18,023.45 = 4,618.71 : x
  2. Step 2: Convert to fraction form
    12,015.63/18,023.45 = 4,618.71/x
  3. Step 3: Cross multiply
    12,015.63x = 18,023.45 × 4,618.71
  4. Step 4: Simplify right side
    12,015.63x = 83,245,065.66
  5. Step 5: Solve for x
    x = 83,245,065.66/12,015.63
  6. Step 6: Final answer
    x = 6,928.07

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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.