Home / 19,678.08-27,155.36-10,725.68

Finding the Fourth Proportional to 19,678.08, 27,155.36 and 10,725.68

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Solution

The fourth proportional to 19,678.08, 27,155.36 and 10,725.68 is: 14,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.08 : 27,155.36 = 10,725.68 : x
  2. Step 2: Convert to fraction form
    19,678.08/27,155.36 = 10,725.68/x
  3. Step 3: Cross multiply
    19,678.08x = 27,155.36 × 10,725.68
  4. Step 4: Simplify right side
    19,678.08x = 291,259,701.64
  5. Step 5: Solve for x
    x = 291,259,701.64/19,678.08
  6. Step 6: Final answer
    x = 14,801.23

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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.