Home / 7,415.30-11,124.77-2,221.17

Finding the Fourth Proportional to 7,415.30, 11,124.77 and 2,221.17

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Solution

The fourth proportional to 7,415.30, 11,124.77 and 2,221.17 is: 3,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.30 : 11,124.77 = 2,221.17 : x
  2. Step 2: Convert to fraction form
    7,415.30/11,124.77 = 2,221.17/x
  3. Step 3: Cross multiply
    7,415.30x = 11,124.77 × 2,221.17
  4. Step 4: Simplify right side
    7,415.30x = 24,710,021.38
  5. Step 5: Solve for x
    x = 24,710,021.38/7,415.30
  6. Step 6: Final answer
    x = 3,332.30

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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.