Home / 7,415.17-11,122.77-1,868.47

Finding the Fourth Proportional to 7,415.17, 11,122.77 and 1,868.47

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Solution

The fourth proportional to 7,415.17, 11,122.77 and 1,868.47 is: 2,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.17 : 11,122.77 = 1,868.47 : x
  2. Step 2: Convert to fraction form
    7,415.17/11,122.77 = 1,868.47/x
  3. Step 3: Cross multiply
    7,415.17x = 11,122.77 × 1,868.47
  4. Step 4: Simplify right side
    7,415.17x = 20,782,562.06
  5. Step 5: Solve for x
    x = 20,782,562.06/7,415.17
  6. Step 6: Final answer
    x = 2,802.71

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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.