Home / 7,217.83-10,830.54-5,122.99

Finding the Fourth Proportional to 7,217.83, 10,830.54 and 5,122.99

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Solution

The fourth proportional to 7,217.83, 10,830.54 and 5,122.99 is: 7,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.83 : 10,830.54 = 5,122.99 : x
  2. Step 2: Convert to fraction form
    7,217.83/10,830.54 = 5,122.99/x
  3. Step 3: Cross multiply
    7,217.83x = 10,830.54 × 5,122.99
  4. Step 4: Simplify right side
    7,217.83x = 55,484,748.11
  5. Step 5: Solve for x
    x = 55,484,748.11/7,217.83
  6. Step 6: Final answer
    x = 7,687.18

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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.