Home / 7,143.16-10,715.76-2,213.24

Finding the Fourth Proportional to 7,143.16, 10,715.76 and 2,213.24

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Solution

The fourth proportional to 7,143.16, 10,715.76 and 2,213.24 is: 3,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.16 : 10,715.76 = 2,213.24 : x
  2. Step 2: Convert to fraction form
    7,143.16/10,715.76 = 2,213.24/x
  3. Step 3: Cross multiply
    7,143.16x = 10,715.76 × 2,213.24
  4. Step 4: Simplify right side
    7,143.16x = 23,716,548.66
  5. Step 5: Solve for x
    x = 23,716,548.66/7,143.16
  6. Step 6: Final answer
    x = 3,320.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.