Home / 11,146.75-15,384.08-6,899.18

Finding the Fourth Proportional to 11,146.75, 15,384.08 and 6,899.18

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Solution

The fourth proportional to 11,146.75, 15,384.08 and 6,899.18 is: 9,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,146.75 : 15,384.08 = 6,899.18 : x
  2. Step 2: Convert to fraction form
    11,146.75/15,384.08 = 6,899.18/x
  3. Step 3: Cross multiply
    11,146.75x = 15,384.08 × 6,899.18
  4. Step 4: Simplify right side
    11,146.75x = 106,137,477.38
  5. Step 5: Solve for x
    x = 106,137,477.38/11,146.75
  6. Step 6: Final answer
    x = 9,521.83

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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.