Home / 10,890.88-15,029.40-6,175.46

Finding the Fourth Proportional to 10,890.88, 15,029.40 and 6,175.46

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Solution

The fourth proportional to 10,890.88, 15,029.40 and 6,175.46 is: 8,522.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.88 : 15,029.40 = 6,175.46 : x
  2. Step 2: Convert to fraction form
    10,890.88/15,029.40 = 6,175.46/x
  3. Step 3: Cross multiply
    10,890.88x = 15,029.40 × 6,175.46
  4. Step 4: Simplify right side
    10,890.88x = 92,813,458.52
  5. Step 5: Solve for x
    x = 92,813,458.52/10,890.88
  6. Step 6: Final answer
    x = 8,522.13

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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.