Home / 10,291.20-14,201.76-5,575.47

Finding the Fourth Proportional to 10,291.20, 14,201.76 and 5,575.47

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Solution

The fourth proportional to 10,291.20, 14,201.76 and 5,575.47 is: 7,694.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.20 : 14,201.76 = 5,575.47 : x
  2. Step 2: Convert to fraction form
    10,291.20/14,201.76 = 5,575.47/x
  3. Step 3: Cross multiply
    10,291.20x = 14,201.76 × 5,575.47
  4. Step 4: Simplify right side
    10,291.20x = 79,181,415.82
  5. Step 5: Solve for x
    x = 79,181,415.82/10,291.20
  6. Step 6: Final answer
    x = 7,694.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.