Home / 10,930.19-15,085.04-6,213.56

Finding the Fourth Proportional to 10,930.19, 15,085.04 and 6,213.56

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Solution

The fourth proportional to 10,930.19, 15,085.04 and 6,213.56 is: 8,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.19 : 15,085.04 = 6,213.56 : x
  2. Step 2: Convert to fraction form
    10,930.19/15,085.04 = 6,213.56/x
  3. Step 3: Cross multiply
    10,930.19x = 15,085.04 × 6,213.56
  4. Step 4: Simplify right side
    10,930.19x = 93,731,694.65
  5. Step 5: Solve for x
    x = 93,731,694.65/10,930.19
  6. Step 6: Final answer
    x = 8,575.49

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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.