Home / 11,397.70-17,080.35-7,930.90

Finding the Fourth Proportional to 11,397.70, 17,080.35 and 7,930.90

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Solution

The fourth proportional to 11,397.70, 17,080.35 and 7,930.90 is: 11,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.70 : 17,080.35 = 7,930.90 : x
  2. Step 2: Convert to fraction form
    11,397.70/17,080.35 = 7,930.90/x
  3. Step 3: Cross multiply
    11,397.70x = 17,080.35 × 7,930.90
  4. Step 4: Simplify right side
    11,397.70x = 135,462,547.82
  5. Step 5: Solve for x
    x = 135,462,547.82/11,397.70
  6. Step 6: Final answer
    x = 11,885.08

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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.