Home / 10,011.54-13,815.84-5,535.21

Finding the Fourth Proportional to 10,011.54, 13,815.84 and 5,535.21

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Solution

The fourth proportional to 10,011.54, 13,815.84 and 5,535.21 is: 7,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.54 : 13,815.84 = 5,535.21 : x
  2. Step 2: Convert to fraction form
    10,011.54/13,815.84 = 5,535.21/x
  3. Step 3: Cross multiply
    10,011.54x = 13,815.84 × 5,535.21
  4. Step 4: Simplify right side
    10,011.54x = 76,473,575.73
  5. Step 5: Solve for x
    x = 76,473,575.73/10,011.54
  6. Step 6: Final answer
    x = 7,638.54

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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.