Home / 10,011.39-13,815.12-5,534.79

Finding the Fourth Proportional to 10,011.39, 13,815.12 and 5,534.79

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Solution

The fourth proportional to 10,011.39, 13,815.12 and 5,534.79 is: 7,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.39 : 13,815.12 = 5,534.79 : x
  2. Step 2: Convert to fraction form
    10,011.39/13,815.12 = 5,534.79/x
  3. Step 3: Cross multiply
    10,011.39x = 13,815.12 × 5,534.79
  4. Step 4: Simplify right side
    10,011.39x = 76,463,788.02
  5. Step 5: Solve for x
    x = 76,463,788.02/10,011.39
  6. Step 6: Final answer
    x = 7,637.68

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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.