Home / 18,878.90-26,051.01-14,405.54

Finding the Fourth Proportional to 18,878.90, 26,051.01 and 14,405.54

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Solution

The fourth proportional to 18,878.90, 26,051.01 and 14,405.54 is: 19,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.90 : 26,051.01 = 14,405.54 : x
  2. Step 2: Convert to fraction form
    18,878.90/26,051.01 = 14,405.54/x
  3. Step 3: Cross multiply
    18,878.90x = 26,051.01 × 14,405.54
  4. Step 4: Simplify right side
    18,878.90x = 375,278,866.60
  5. Step 5: Solve for x
    x = 375,278,866.60/18,878.90
  6. Step 6: Final answer
    x = 19,878.22

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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.