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Finding the Fourth Proportional to 9,528, 13,149.12 and 5,550.24

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Solution

The fourth proportional to 9,528, 13,149.12 and 5,550.24 is: 7,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,528 : 13,149.12 = 5,550.24 : x
  2. Step 2: Convert to fraction form
    9,528/13,149.12 = 5,550.24/x
  3. Step 3: Cross multiply
    9,528x = 13,149.12 × 5,550.24
  4. Step 4: Simplify right side
    9,528x = 72,980,771.79
  5. Step 5: Solve for x
    x = 72,980,771.79/9,528
  6. Step 6: Final answer
    x = 7,659.61

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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.