Home / 11,191.58-15,444.82-6,412.28

Finding the Fourth Proportional to 11,191.58, 15,444.82 and 6,412.28

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Solution

The fourth proportional to 11,191.58, 15,444.82 and 6,412.28 is: 8,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.58 : 15,444.82 = 6,412.28 : x
  2. Step 2: Convert to fraction form
    11,191.58/15,444.82 = 6,412.28/x
  3. Step 3: Cross multiply
    11,191.58x = 15,444.82 × 6,412.28
  4. Step 4: Simplify right side
    11,191.58x = 99,036,510.39
  5. Step 5: Solve for x
    x = 99,036,510.39/11,191.58
  6. Step 6: Final answer
    x = 8,849.20

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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.