Home / 17,886.42-26,829.90-5,406.55

Finding the Fourth Proportional to 17,886.42, 26,829.90 and 5,406.55

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Solution

The fourth proportional to 17,886.42, 26,829.90 and 5,406.55 is: 8,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,886.42 : 26,829.90 = 5,406.55 : x
  2. Step 2: Convert to fraction form
    17,886.42/26,829.90 = 5,406.55/x
  3. Step 3: Cross multiply
    17,886.42x = 26,829.90 × 5,406.55
  4. Step 4: Simplify right side
    17,886.42x = 145,057,128.77
  5. Step 5: Solve for x
    x = 145,057,128.77/17,886.42
  6. Step 6: Final answer
    x = 8,109.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.