Home / 7,447.12-10,274.46-5,322.88

Finding the Fourth Proportional to 7,447.12, 10,274.46 and 5,322.88

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Solution

The fourth proportional to 7,447.12, 10,274.46 and 5,322.88 is: 7,343.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.12 : 10,274.46 = 5,322.88 : x
  2. Step 2: Convert to fraction form
    7,447.12/10,274.46 = 5,322.88/x
  3. Step 3: Cross multiply
    7,447.12x = 10,274.46 × 5,322.88
  4. Step 4: Simplify right side
    7,447.12x = 54,689,717.64
  5. Step 5: Solve for x
    x = 54,689,717.64/7,447.12
  6. Step 6: Final answer
    x = 7,343.74

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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.