Home / 10,066.47-13,891.70-5,590.11

Finding the Fourth Proportional to 10,066.47, 13,891.70 and 5,590.11

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Solution

The fourth proportional to 10,066.47, 13,891.70 and 5,590.11 is: 7,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,066.47 : 13,891.70 = 5,590.11 : x
  2. Step 2: Convert to fraction form
    10,066.47/13,891.70 = 5,590.11/x
  3. Step 3: Cross multiply
    10,066.47x = 13,891.70 × 5,590.11
  4. Step 4: Simplify right side
    10,066.47x = 77,656,103.14
  5. Step 5: Solve for x
    x = 77,656,103.14/10,066.47
  6. Step 6: Final answer
    x = 7,714.33

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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.