Home / 9,278.71-12,803.22-5,298.98

Finding the Fourth Proportional to 9,278.71, 12,803.22 and 5,298.98

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Solution

The fourth proportional to 9,278.71, 12,803.22 and 5,298.98 is: 7,311.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.71 : 12,803.22 = 5,298.98 : x
  2. Step 2: Convert to fraction form
    9,278.71/12,803.22 = 5,298.98/x
  3. Step 3: Cross multiply
    9,278.71x = 12,803.22 × 5,298.98
  4. Step 4: Simplify right side
    9,278.71x = 67,843,942.70
  5. Step 5: Solve for x
    x = 67,843,942.70/9,278.71
  6. Step 6: Final answer
    x = 7,311.79

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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.