Home / 7,218.08-9,960.96-4,193.80

Finding the Fourth Proportional to 7,218.08, 9,960.96 and 4,193.80

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Solution

The fourth proportional to 7,218.08, 9,960.96 and 4,193.80 is: 5,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.08 : 9,960.96 = 4,193.80 : x
  2. Step 2: Convert to fraction form
    7,218.08/9,960.96 = 4,193.80/x
  3. Step 3: Cross multiply
    7,218.08x = 9,960.96 × 4,193.80
  4. Step 4: Simplify right side
    7,218.08x = 41,774,274.05
  5. Step 5: Solve for x
    x = 41,774,274.05/7,218.08
  6. Step 6: Final answer
    x = 5,787.45

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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.