Home / 11,135.86-16,711.90-8,970.74

Finding the Fourth Proportional to 11,135.86, 16,711.90 and 8,970.74

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Solution

The fourth proportional to 11,135.86, 16,711.90 and 8,970.74 is: 13,462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.86 : 16,711.90 = 8,970.74 : x
  2. Step 2: Convert to fraction form
    11,135.86/16,711.90 = 8,970.74/x
  3. Step 3: Cross multiply
    11,135.86x = 16,711.90 × 8,970.74
  4. Step 4: Simplify right side
    11,135.86x = 149,918,109.81
  5. Step 5: Solve for x
    x = 149,918,109.81/11,135.86
  6. Step 6: Final answer
    x = 13,462.64

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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.