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Finding the Fourth Proportional to 9,443.52, 14,228.28 and 8,555.16

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Solution

The fourth proportional to 9,443.52, 14,228.28 and 8,555.16 is: 12,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,443.52 : 14,228.28 = 8,555.16 : x
  2. Step 2: Convert to fraction form
    9,443.52/14,228.28 = 8,555.16/x
  3. Step 3: Cross multiply
    9,443.52x = 14,228.28 × 8,555.16
  4. Step 4: Simplify right side
    9,443.52x = 121,725,211.92
  5. Step 5: Solve for x
    x = 121,725,211.92/9,443.52
  6. Step 6: Final answer
    x = 12,889.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.