Home / 19,678.07-27,155.40-10,725.65

Finding the Fourth Proportional to 19,678.07, 27,155.40 and 10,725.65

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Solution

The fourth proportional to 19,678.07, 27,155.40 and 10,725.65 is: 14,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.07 : 27,155.40 = 10,725.65 : x
  2. Step 2: Convert to fraction form
    19,678.07/27,155.40 = 10,725.65/x
  3. Step 3: Cross multiply
    19,678.07x = 27,155.40 × 10,725.65
  4. Step 4: Simplify right side
    19,678.07x = 291,259,316.01
  5. Step 5: Solve for x
    x = 291,259,316.01/19,678.07
  6. Step 6: Final answer
    x = 14,801.21

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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.