Home / 19,678.49-27,155.52-10,725.80

Finding the Fourth Proportional to 19,678.49, 27,155.52 and 10,725.80

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Solution

The fourth proportional to 19,678.49, 27,155.52 and 10,725.80 is: 14,801.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.49 : 27,155.52 = 10,725.80 : x
  2. Step 2: Convert to fraction form
    19,678.49/27,155.52 = 10,725.80/x
  3. Step 3: Cross multiply
    19,678.49x = 27,155.52 × 10,725.80
  4. Step 4: Simplify right side
    19,678.49x = 291,264,540.64
  5. Step 5: Solve for x
    x = 291,264,540.64/19,678.49
  6. Step 6: Final answer
    x = 14,801.17

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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.