Home / 19,678.25-27,155.19-10,725.56

Finding the Fourth Proportional to 19,678.25, 27,155.19 and 10,725.56

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Solution

The fourth proportional to 19,678.25, 27,155.19 and 10,725.56 is: 14,800.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.25 : 27,155.19 = 10,725.56 : x
  2. Step 2: Convert to fraction form
    19,678.25/27,155.19 = 10,725.56/x
  3. Step 3: Cross multiply
    19,678.25x = 27,155.19 × 10,725.56
  4. Step 4: Simplify right side
    19,678.25x = 291,254,619.66
  5. Step 5: Solve for x
    x = 291,254,619.66/19,678.25
  6. Step 6: Final answer
    x = 14,800.84

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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.