Home / 7,218.63-9,961.43-4,531.30

Finding the Fourth Proportional to 7,218.63, 9,961.43 and 4,531.30

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Solution

The fourth proportional to 7,218.63, 9,961.43 and 4,531.30 is: 6,253.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.63 : 9,961.43 = 4,531.30 : x
  2. Step 2: Convert to fraction form
    7,218.63/9,961.43 = 4,531.30/x
  3. Step 3: Cross multiply
    7,218.63x = 9,961.43 × 4,531.30
  4. Step 4: Simplify right side
    7,218.63x = 45,138,227.76
  5. Step 5: Solve for x
    x = 45,138,227.76/7,218.63
  6. Step 6: Final answer
    x = 6,253.02

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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.