Home / 8,447.49-11,656.71-5,090.04

Finding the Fourth Proportional to 8,447.49, 11,656.71 and 5,090.04

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Solution

The fourth proportional to 8,447.49, 11,656.71 and 5,090.04 is: 7,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.49 : 11,656.71 = 5,090.04 : x
  2. Step 2: Convert to fraction form
    8,447.49/11,656.71 = 5,090.04/x
  3. Step 3: Cross multiply
    8,447.49x = 11,656.71 × 5,090.04
  4. Step 4: Simplify right side
    8,447.49x = 59,333,120.17
  5. Step 5: Solve for x
    x = 59,333,120.17/8,447.49
  6. Step 6: Final answer
    x = 7,023.76

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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.