Home / 11,990.82-16,547.38-7,213.50

Finding the Fourth Proportional to 11,990.82, 16,547.38 and 7,213.50

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Solution

The fourth proportional to 11,990.82, 16,547.38 and 7,213.50 is: 9,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.82 : 16,547.38 = 7,213.50 : x
  2. Step 2: Convert to fraction form
    11,990.82/16,547.38 = 7,213.50/x
  3. Step 3: Cross multiply
    11,990.82x = 16,547.38 × 7,213.50
  4. Step 4: Simplify right side
    11,990.82x = 119,364,525.63
  5. Step 5: Solve for x
    x = 119,364,525.63/11,990.82
  6. Step 6: Final answer
    x = 9,954.66

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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.