Home / 19,764.69-27,275.18-10,812.03

Finding the Fourth Proportional to 19,764.69, 27,275.18 and 10,812.03

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Solution

The fourth proportional to 19,764.69, 27,275.18 and 10,812.03 is: 14,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.69 : 27,275.18 = 10,812.03 : x
  2. Step 2: Convert to fraction form
    19,764.69/27,275.18 = 10,812.03/x
  3. Step 3: Cross multiply
    19,764.69x = 27,275.18 × 10,812.03
  4. Step 4: Simplify right side
    19,764.69x = 294,900,010.36
  5. Step 5: Solve for x
    x = 294,900,010.36/19,764.69
  6. Step 6: Final answer
    x = 14,920.55

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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.