Home / 10,022.09-15,038.46-5,639.85

Finding the Fourth Proportional to 10,022.09, 15,038.46 and 5,639.85

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Solution

The fourth proportional to 10,022.09, 15,038.46 and 5,639.85 is: 8,462.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,022.09 : 15,038.46 = 5,639.85 : x
  2. Step 2: Convert to fraction form
    10,022.09/15,038.46 = 5,639.85/x
  3. Step 3: Cross multiply
    10,022.09x = 15,038.46 × 5,639.85
  4. Step 4: Simplify right side
    10,022.09x = 84,814,658.63
  5. Step 5: Solve for x
    x = 84,814,658.63/10,022.09
  6. Step 6: Final answer
    x = 8,462.78

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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.