Home / 10,100.44-13,938.72-5,563.64

Finding the Fourth Proportional to 10,100.44, 13,938.72 and 5,563.64

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Solution

The fourth proportional to 10,100.44, 13,938.72 and 5,563.64 is: 7,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.44 : 13,938.72 = 5,563.64 : x
  2. Step 2: Convert to fraction form
    10,100.44/13,938.72 = 5,563.64/x
  3. Step 3: Cross multiply
    10,100.44x = 13,938.72 × 5,563.64
  4. Step 4: Simplify right side
    10,100.44x = 77,550,020.14
  5. Step 5: Solve for x
    x = 77,550,020.14/10,100.44
  6. Step 6: Final answer
    x = 7,677.89

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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.