Home / 10,005.46-15,017.23-5,329.38

Finding the Fourth Proportional to 10,005.46, 15,017.23 and 5,329.38

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Solution

The fourth proportional to 10,005.46, 15,017.23 and 5,329.38 is: 7,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.46 : 15,017.23 = 5,329.38 : x
  2. Step 2: Convert to fraction form
    10,005.46/15,017.23 = 5,329.38/x
  3. Step 3: Cross multiply
    10,005.46x = 15,017.23 × 5,329.38
  4. Step 4: Simplify right side
    10,005.46x = 80,032,525.22
  5. Step 5: Solve for x
    x = 80,032,525.22/10,005.46
  6. Step 6: Final answer
    x = 7,998.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.