Home / 18,678.81-25,777.05-10,295.31

Finding the Fourth Proportional to 18,678.81, 25,777.05 and 10,295.31

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Solution

The fourth proportional to 18,678.81, 25,777.05 and 10,295.31 is: 14,207.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.81 : 25,777.05 = 10,295.31 : x
  2. Step 2: Convert to fraction form
    18,678.81/25,777.05 = 10,295.31/x
  3. Step 3: Cross multiply
    18,678.81x = 25,777.05 × 10,295.31
  4. Step 4: Simplify right side
    18,678.81x = 265,382,720.64
  5. Step 5: Solve for x
    x = 265,382,720.64/18,678.81
  6. Step 6: Final answer
    x = 14,207.69

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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.