Home / 11,909.96-16,434.55-6,875.80

Finding the Fourth Proportional to 11,909.96, 16,434.55 and 6,875.80

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Solution

The fourth proportional to 11,909.96, 16,434.55 and 6,875.80 is: 9,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.96 : 16,434.55 = 6,875.80 : x
  2. Step 2: Convert to fraction form
    11,909.96/16,434.55 = 6,875.80/x
  3. Step 3: Cross multiply
    11,909.96x = 16,434.55 × 6,875.80
  4. Step 4: Simplify right side
    11,909.96x = 113,000,696.08
  5. Step 5: Solve for x
    x = 113,000,696.08/11,909.96
  6. Step 6: Final answer
    x = 9,487.92

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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.