Home / 7,621.56-11,430.72-2,426.22

Finding the Fourth Proportional to 7,621.56, 11,430.72 and 2,426.22

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Solution

The fourth proportional to 7,621.56, 11,430.72 and 2,426.22 is: 3,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.56 : 11,430.72 = 2,426.22 : x
  2. Step 2: Convert to fraction form
    7,621.56/11,430.72 = 2,426.22/x
  3. Step 3: Cross multiply
    7,621.56x = 11,430.72 × 2,426.22
  4. Step 4: Simplify right side
    7,621.56x = 27,733,441.48
  5. Step 5: Solve for x
    x = 27,733,441.48/7,621.56
  6. Step 6: Final answer
    x = 3,638.81

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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.