Home / 12,528.95-18,791.79-4,736.75

Finding the Fourth Proportional to 12,528.95, 18,791.79 and 4,736.75

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Solution

The fourth proportional to 12,528.95, 18,791.79 and 4,736.75 is: 7,104.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.95 : 18,791.79 = 4,736.75 : x
  2. Step 2: Convert to fraction form
    12,528.95/18,791.79 = 4,736.75/x
  3. Step 3: Cross multiply
    12,528.95x = 18,791.79 × 4,736.75
  4. Step 4: Simplify right side
    12,528.95x = 89,012,011.28
  5. Step 5: Solve for x
    x = 89,012,011.28/12,528.95
  6. Step 6: Final answer
    x = 7,104.51

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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.