Home / 11,421.86-17,126.30-8,337.38

Finding the Fourth Proportional to 11,421.86, 17,126.30 and 8,337.38

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Solution

The fourth proportional to 11,421.86, 17,126.30 and 8,337.38 is: 12,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.86 : 17,126.30 = 8,337.38 : x
  2. Step 2: Convert to fraction form
    11,421.86/17,126.30 = 8,337.38/x
  3. Step 3: Cross multiply
    11,421.86x = 17,126.30 × 8,337.38
  4. Step 4: Simplify right side
    11,421.86x = 142,788,406.31
  5. Step 5: Solve for x
    x = 142,788,406.31/11,421.86
  6. Step 6: Final answer
    x = 12,501.33

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1.5x scale

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.