Home / 7,812.24-11,718.38-3,656.92

Finding the Fourth Proportional to 7,812.24, 11,718.38 and 3,656.92

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Solution

The fourth proportional to 7,812.24, 11,718.38 and 3,656.92 is: 5,485.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.24 : 11,718.38 = 3,656.92 : x
  2. Step 2: Convert to fraction form
    7,812.24/11,718.38 = 3,656.92/x
  3. Step 3: Cross multiply
    7,812.24x = 11,718.38 × 3,656.92
  4. Step 4: Simplify right side
    7,812.24x = 42,853,178.19
  5. Step 5: Solve for x
    x = 42,853,178.19/7,812.24
  6. Step 6: Final answer
    x = 5,485.39

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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.