Home / 15,532.24-21,434.64-8,817.68

Finding the Fourth Proportional to 15,532.24, 21,434.64 and 8,817.68

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Solution

The fourth proportional to 15,532.24, 21,434.64 and 8,817.68 is: 12,168.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.24 : 21,434.64 = 8,817.68 : x
  2. Step 2: Convert to fraction form
    15,532.24/21,434.64 = 8,817.68/x
  3. Step 3: Cross multiply
    15,532.24x = 21,434.64 × 8,817.68
  4. Step 4: Simplify right side
    15,532.24x = 189,003,796.44
  5. Step 5: Solve for x
    x = 189,003,796.44/15,532.24
  6. Step 6: Final answer
    x = 12,168.48

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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.