Home / 8,274.48-11,421.72-5,480.88

Finding the Fourth Proportional to 8,274.48, 11,421.72 and 5,480.88

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Solution

The fourth proportional to 8,274.48, 11,421.72 and 5,480.88 is: 7,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.48 : 11,421.72 = 5,480.88 : x
  2. Step 2: Convert to fraction form
    8,274.48/11,421.72 = 5,480.88/x
  3. Step 3: Cross multiply
    8,274.48x = 11,421.72 × 5,480.88
  4. Step 4: Simplify right side
    8,274.48x = 62,601,076.71
  5. Step 5: Solve for x
    x = 62,601,076.71/8,274.48
  6. Step 6: Final answer
    x = 7,565.56

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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.