Home / 18,171.69-25,070.31-11,454.81

Finding the Fourth Proportional to 18,171.69, 25,070.31 and 11,454.81

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Solution

The fourth proportional to 18,171.69, 25,070.31 and 11,454.81 is: 15,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.69 : 25,070.31 = 11,454.81 : x
  2. Step 2: Convert to fraction form
    18,171.69/25,070.31 = 11,454.81/x
  3. Step 3: Cross multiply
    18,171.69x = 25,070.31 × 11,454.81
  4. Step 4: Simplify right side
    18,171.69x = 287,175,637.69
  5. Step 5: Solve for x
    x = 287,175,637.69/18,171.69
  6. Step 6: Final answer
    x = 15,803.46

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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.