Home / 7,988.11-11,012.47-5,001.94

Finding the Fourth Proportional to 7,988.11, 11,012.47 and 5,001.94

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Solution

The fourth proportional to 7,988.11, 11,012.47 and 5,001.94 is: 6,895.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.11 : 11,012.47 = 5,001.94 : x
  2. Step 2: Convert to fraction form
    7,988.11/11,012.47 = 5,001.94/x
  3. Step 3: Cross multiply
    7,988.11x = 11,012.47 × 5,001.94
  4. Step 4: Simplify right side
    7,988.11x = 55,083,714.19
  5. Step 5: Solve for x
    x = 55,083,714.19/7,988.11
  6. Step 6: Final answer
    x = 6,895.71

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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.