Home / 10,999.46-15,175.67-6,218.94

Finding the Fourth Proportional to 10,999.46, 15,175.67 and 6,218.94

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Solution

The fourth proportional to 10,999.46, 15,175.67 and 6,218.94 is: 8,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.46 : 15,175.67 = 6,218.94 : x
  2. Step 2: Convert to fraction form
    10,999.46/15,175.67 = 6,218.94/x
  3. Step 3: Cross multiply
    10,999.46x = 15,175.67 × 6,218.94
  4. Step 4: Simplify right side
    10,999.46x = 94,376,581.19
  5. Step 5: Solve for x
    x = 94,376,581.19/10,999.46
  6. Step 6: Final answer
    x = 8,580.11

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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.