Home / 7,447.34-10,275.49-4,217.21

Finding the Fourth Proportional to 7,447.34, 10,275.49 and 4,217.21

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Solution

The fourth proportional to 7,447.34, 10,275.49 and 4,217.21 is: 5,818.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.34 : 10,275.49 = 4,217.21 : x
  2. Step 2: Convert to fraction form
    7,447.34/10,275.49 = 4,217.21/x
  3. Step 3: Cross multiply
    7,447.34x = 10,275.49 × 4,217.21
  4. Step 4: Simplify right side
    7,447.34x = 43,333,899.18
  5. Step 5: Solve for x
    x = 43,333,899.18/7,447.34
  6. Step 6: Final answer
    x = 5,818.71

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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.