Home / 7,221.48-10,813.53-6,188.10

Finding the Fourth Proportional to 7,221.48, 10,813.53 and 6,188.10

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Solution

The fourth proportional to 7,221.48, 10,813.53 and 6,188.10 is: 9,266.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.48 : 10,813.53 = 6,188.10 : x
  2. Step 2: Convert to fraction form
    7,221.48/10,813.53 = 6,188.10/x
  3. Step 3: Cross multiply
    7,221.48x = 10,813.53 × 6,188.10
  4. Step 4: Simplify right side
    7,221.48x = 66,915,204.99
  5. Step 5: Solve for x
    x = 66,915,204.99/7,221.48
  6. Step 6: Final answer
    x = 9,266.13

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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.