Home / 10,930.41-15,085.31-6,215.13

Finding the Fourth Proportional to 10,930.41, 15,085.31 and 6,215.13

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Solution

The fourth proportional to 10,930.41, 15,085.31 and 6,215.13 is: 8,577.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.41 : 15,085.31 = 6,215.13 : x
  2. Step 2: Convert to fraction form
    10,930.41/15,085.31 = 6,215.13/x
  3. Step 3: Cross multiply
    10,930.41x = 15,085.31 × 6,215.13
  4. Step 4: Simplify right side
    10,930.41x = 93,757,131.66
  5. Step 5: Solve for x
    x = 93,757,131.66/10,930.41
  6. Step 6: Final answer
    x = 8,577.64

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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.