Home / 10,664.20-15,953.58-9,218.92

Finding the Fourth Proportional to 10,664.20, 15,953.58 and 9,218.92

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Solution

The fourth proportional to 10,664.20, 15,953.58 and 9,218.92 is: 13,791.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.20 : 15,953.58 = 9,218.92 : x
  2. Step 2: Convert to fraction form
    10,664.20/15,953.58 = 9,218.92/x
  3. Step 3: Cross multiply
    10,664.20x = 15,953.58 × 9,218.92
  4. Step 4: Simplify right side
    10,664.20x = 147,074,777.73
  5. Step 5: Solve for x
    x = 147,074,777.73/10,664.20
  6. Step 6: Final answer
    x = 13,791.45

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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.