Home / 7,312.26-10,947.66-6,620.22

Finding the Fourth Proportional to 7,312.26, 10,947.66 and 6,620.22

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Solution

The fourth proportional to 7,312.26, 10,947.66 and 6,620.22 is: 9,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.26 : 10,947.66 = 6,620.22 : x
  2. Step 2: Convert to fraction form
    7,312.26/10,947.66 = 6,620.22/x
  3. Step 3: Cross multiply
    7,312.26x = 10,947.66 × 6,620.22
  4. Step 4: Simplify right side
    7,312.26x = 72,475,917.69
  5. Step 5: Solve for x
    x = 72,475,917.69/7,312.26
  6. Step 6: Final answer
    x = 9,911.56

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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.