Home / 11,390.43-17,094.76-4,821.20

Finding the Fourth Proportional to 11,390.43, 17,094.76 and 4,821.20

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Solution

The fourth proportional to 11,390.43, 17,094.76 and 4,821.20 is: 7,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.43 : 17,094.76 = 4,821.20 : x
  2. Step 2: Convert to fraction form
    11,390.43/17,094.76 = 4,821.20/x
  3. Step 3: Cross multiply
    11,390.43x = 17,094.76 × 4,821.20
  4. Step 4: Simplify right side
    11,390.43x = 82,417,159.39
  5. Step 5: Solve for x
    x = 82,417,159.39/11,390.43
  6. Step 6: Final answer
    x = 7,235.65

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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.