Home / 18,678.64-25,776.36-10,295.20

Finding the Fourth Proportional to 18,678.64, 25,776.36 and 10,295.20

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Solution

The fourth proportional to 18,678.64, 25,776.36 and 10,295.20 is: 14,207.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.64 : 25,776.36 = 10,295.20 : x
  2. Step 2: Convert to fraction form
    18,678.64/25,776.36 = 10,295.20/x
  3. Step 3: Cross multiply
    18,678.64x = 25,776.36 × 10,295.20
  4. Step 4: Simplify right side
    18,678.64x = 265,372,781.47
  5. Step 5: Solve for x
    x = 265,372,781.47/18,678.64
  6. Step 6: Final answer
    x = 14,207.29

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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.