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Finding the Fourth Proportional to 8,959.47, 13,441.93 and 3,619.91

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Solution

The fourth proportional to 8,959.47, 13,441.93 and 3,619.91 is: 5,430.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.47 : 13,441.93 = 3,619.91 : x
  2. Step 2: Convert to fraction form
    8,959.47/13,441.93 = 3,619.91/x
  3. Step 3: Cross multiply
    8,959.47x = 13,441.93 × 3,619.91
  4. Step 4: Simplify right side
    8,959.47x = 48,658,558.73
  5. Step 5: Solve for x
    x = 48,658,558.73/8,959.47
  6. Step 6: Final answer
    x = 5,430.96

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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.