Home / 7,288.30-10,916-5,106.76

Finding the Fourth Proportional to 7,288.30, 10,916 and 5,106.76

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Solution

The fourth proportional to 7,288.30, 10,916 and 5,106.76 is: 7,648.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.30 : 10,916 = 5,106.76 : x
  2. Step 2: Convert to fraction form
    7,288.30/10,916 = 5,106.76/x
  3. Step 3: Cross multiply
    7,288.30x = 10,916 × 5,106.76
  4. Step 4: Simplify right side
    7,288.30x = 55,745,392.16
  5. Step 5: Solve for x
    x = 55,745,392.16/7,288.30
  6. Step 6: Final answer
    x = 7,648.61

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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.