Home / 19,678.16-27,155.06-10,725.47

Finding the Fourth Proportional to 19,678.16, 27,155.06 and 10,725.47

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Solution

The fourth proportional to 19,678.16, 27,155.06 and 10,725.47 is: 14,800.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.16 : 27,155.06 = 10,725.47 : x
  2. Step 2: Convert to fraction form
    19,678.16/27,155.06 = 10,725.47/x
  3. Step 3: Cross multiply
    19,678.16x = 27,155.06 × 10,725.47
  4. Step 4: Simplify right side
    19,678.16x = 291,250,591.98
  5. Step 5: Solve for x
    x = 291,250,591.98/19,678.16
  6. Step 6: Final answer
    x = 14,800.71

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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.