Home / 10,388.64-14,335.81-5,912.79

Finding the Fourth Proportional to 10,388.64, 14,335.81 and 5,912.79

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Solution

The fourth proportional to 10,388.64, 14,335.81 and 5,912.79 is: 8,159.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.64 : 14,335.81 = 5,912.79 : x
  2. Step 2: Convert to fraction form
    10,388.64/14,335.81 = 5,912.79/x
  3. Step 3: Cross multiply
    10,388.64x = 14,335.81 × 5,912.79
  4. Step 4: Simplify right side
    10,388.64x = 84,764,634.01
  5. Step 5: Solve for x
    x = 84,764,634.01/10,388.64
  6. Step 6: Final answer
    x = 8,159.36

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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.