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Finding the Fourth Proportional to 9,011.74, 13,509.93 and 5,504.20

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Solution

The fourth proportional to 9,011.74, 13,509.93 and 5,504.20 is: 8,251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.74 : 13,509.93 = 5,504.20 : x
  2. Step 2: Convert to fraction form
    9,011.74/13,509.93 = 5,504.20/x
  3. Step 3: Cross multiply
    9,011.74x = 13,509.93 × 5,504.20
  4. Step 4: Simplify right side
    9,011.74x = 74,361,356.71
  5. Step 5: Solve for x
    x = 74,361,356.71/9,011.74
  6. Step 6: Final answer
    x = 8,251.61

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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.