Home / 19,678.54-27,156.41-10,725.87

Finding the Fourth Proportional to 19,678.54, 27,156.41 and 10,725.87

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Solution

The fourth proportional to 19,678.54, 27,156.41 and 10,725.87 is: 14,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.54 : 27,156.41 = 10,725.87 : x
  2. Step 2: Convert to fraction form
    19,678.54/27,156.41 = 10,725.87/x
  3. Step 3: Cross multiply
    19,678.54x = 27,156.41 × 10,725.87
  4. Step 4: Simplify right side
    19,678.54x = 291,275,933.92
  5. Step 5: Solve for x
    x = 291,275,933.92/19,678.54
  6. Step 6: Final answer
    x = 14,801.70

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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.