Home / 9,288.87-12,818.66-5,309.97

Finding the Fourth Proportional to 9,288.87, 12,818.66 and 5,309.97

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Solution

The fourth proportional to 9,288.87, 12,818.66 and 5,309.97 is: 7,327.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,288.87 : 12,818.66 = 5,309.97 : x
  2. Step 2: Convert to fraction form
    9,288.87/12,818.66 = 5,309.97/x
  3. Step 3: Cross multiply
    9,288.87x = 12,818.66 × 5,309.97
  4. Step 4: Simplify right side
    9,288.87x = 68,066,673.49
  5. Step 5: Solve for x
    x = 68,066,673.49/9,288.87
  6. Step 6: Final answer
    x = 7,327.77

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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.