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Finding the Fourth Proportional to 7,443.52, 11,160.80 and 3,983.68

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Solution

The fourth proportional to 7,443.52, 11,160.80 and 3,983.68 is: 5,973.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443.52 : 11,160.80 = 3,983.68 : x
  2. Step 2: Convert to fraction form
    7,443.52/11,160.80 = 3,983.68/x
  3. Step 3: Cross multiply
    7,443.52x = 11,160.80 × 3,983.68
  4. Step 4: Simplify right side
    7,443.52x = 44,461,055.74
  5. Step 5: Solve for x
    x = 44,461,055.74/7,443.52
  6. Step 6: Final answer
    x = 5,973.12

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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.