Home / 11,881.04-17,820.16-3,116.63

Finding the Fourth Proportional to 11,881.04, 17,820.16 and 3,116.63

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Solution

The fourth proportional to 11,881.04, 17,820.16 and 3,116.63 is: 4,674.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.04 : 17,820.16 = 3,116.63 : x
  2. Step 2: Convert to fraction form
    11,881.04/17,820.16 = 3,116.63/x
  3. Step 3: Cross multiply
    11,881.04x = 17,820.16 × 3,116.63
  4. Step 4: Simplify right side
    11,881.04x = 55,538,882.02
  5. Step 5: Solve for x
    x = 55,538,882.02/11,881.04
  6. Step 6: Final answer
    x = 4,674.58

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1.5x scale

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.