Home / 7,478.21-10,324.13-5,881.70

Finding the Fourth Proportional to 7,478.21, 10,324.13 and 5,881.70

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Solution

The fourth proportional to 7,478.21, 10,324.13 and 5,881.70 is: 8,120.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.21 : 10,324.13 = 5,881.70 : x
  2. Step 2: Convert to fraction form
    7,478.21/10,324.13 = 5,881.70/x
  3. Step 3: Cross multiply
    7,478.21x = 10,324.13 × 5,881.70
  4. Step 4: Simplify right side
    7,478.21x = 60,723,431.82
  5. Step 5: Solve for x
    x = 60,723,431.82/7,478.21
  6. Step 6: Final answer
    x = 8,120.05

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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.