Home / 10,066.60-13,890.43-5,590.39

Finding the Fourth Proportional to 10,066.60, 13,890.43 and 5,590.39

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Solution

The fourth proportional to 10,066.60, 13,890.43 and 5,590.39 is: 7,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,066.60 : 13,890.43 = 5,590.39 : x
  2. Step 2: Convert to fraction form
    10,066.60/13,890.43 = 5,590.39/x
  3. Step 3: Cross multiply
    10,066.60x = 13,890.43 × 5,590.39
  4. Step 4: Simplify right side
    10,066.60x = 77,652,920.97
  5. Step 5: Solve for x
    x = 77,652,920.97/10,066.60
  6. Step 6: Final answer
    x = 7,713.92

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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.