Home / 18,878.76-26,066.21-13,226.04

Finding the Fourth Proportional to 18,878.76, 26,066.21 and 13,226.04

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Solution

The fourth proportional to 18,878.76, 26,066.21 and 13,226.04 is: 18,261.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.76 : 26,066.21 = 13,226.04 : x
  2. Step 2: Convert to fraction form
    18,878.76/26,066.21 = 13,226.04/x
  3. Step 3: Cross multiply
    18,878.76x = 26,066.21 × 13,226.04
  4. Step 4: Simplify right side
    18,878.76x = 344,752,669.98
  5. Step 5: Solve for x
    x = 344,752,669.98/18,878.76
  6. Step 6: Final answer
    x = 18,261.40

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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.