Home / 11,615.04-17,389.44-7,711.68

Finding the Fourth Proportional to 11,615.04, 17,389.44 and 7,711.68

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Solution

The fourth proportional to 11,615.04, 17,389.44 and 7,711.68 is: 11,545.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,615.04 : 17,389.44 = 7,711.68 : x
  2. Step 2: Convert to fraction form
    11,615.04/17,389.44 = 7,711.68/x
  3. Step 3: Cross multiply
    11,615.04x = 17,389.44 × 7,711.68
  4. Step 4: Simplify right side
    11,615.04x = 134,101,796.66
  5. Step 5: Solve for x
    x = 134,101,796.66/11,615.04
  6. Step 6: Final answer
    x = 11,545.53

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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.