Home / 10,012.16-15,005.40-4,161.80

Finding the Fourth Proportional to 10,012.16, 15,005.40 and 4,161.80

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Solution

The fourth proportional to 10,012.16, 15,005.40 and 4,161.80 is: 6,237.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.16 : 15,005.40 = 4,161.80 : x
  2. Step 2: Convert to fraction form
    10,012.16/15,005.40 = 4,161.80/x
  3. Step 3: Cross multiply
    10,012.16x = 15,005.40 × 4,161.80
  4. Step 4: Simplify right side
    10,012.16x = 62,449,473.72
  5. Step 5: Solve for x
    x = 62,449,473.72/10,012.16
  6. Step 6: Final answer
    x = 6,237.36

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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.