Home / 19,719.76-27,212.36-10,767.68

Finding the Fourth Proportional to 19,719.76, 27,212.36 and 10,767.68

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Solution

The fourth proportional to 19,719.76, 27,212.36 and 10,767.68 is: 14,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.76 : 27,212.36 = 10,767.68 : x
  2. Step 2: Convert to fraction form
    19,719.76/27,212.36 = 10,767.68/x
  3. Step 3: Cross multiply
    19,719.76x = 27,212.36 × 10,767.68
  4. Step 4: Simplify right side
    19,719.76x = 293,013,984.52
  5. Step 5: Solve for x
    x = 293,013,984.52/19,719.76
  6. Step 6: Final answer
    x = 14,858.90

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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.