Home / 11,909.54-16,432.80-7,194.08

Finding the Fourth Proportional to 11,909.54, 16,432.80 and 7,194.08

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Solution

The fourth proportional to 11,909.54, 16,432.80 and 7,194.08 is: 9,926.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.54 : 16,432.80 = 7,194.08 : x
  2. Step 2: Convert to fraction form
    11,909.54/16,432.80 = 7,194.08/x
  3. Step 3: Cross multiply
    11,909.54x = 16,432.80 × 7,194.08
  4. Step 4: Simplify right side
    11,909.54x = 118,218,877.82
  5. Step 5: Solve for x
    x = 118,218,877.82/11,909.54
  6. Step 6: Final answer
    x = 9,926.40

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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.