Home / 19,765.12-27,276.06-10,812.88

Finding the Fourth Proportional to 19,765.12, 27,276.06 and 10,812.88

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Solution

The fourth proportional to 19,765.12, 27,276.06 and 10,812.88 is: 14,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.12 : 27,276.06 = 10,812.88 : x
  2. Step 2: Convert to fraction form
    19,765.12/27,276.06 = 10,812.88/x
  3. Step 3: Cross multiply
    19,765.12x = 27,276.06 × 10,812.88
  4. Step 4: Simplify right side
    19,765.12x = 294,932,763.65
  5. Step 5: Solve for x
    x = 294,932,763.65/19,765.12
  6. Step 6: Final answer
    x = 14,921.88

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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.