Home / 11,126.12-15,343.14-9,376.04

Finding the Fourth Proportional to 11,126.12, 15,343.14 and 9,376.04

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Solution

The fourth proportional to 11,126.12, 15,343.14 and 9,376.04 is: 12,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.12 : 15,343.14 = 9,376.04 : x
  2. Step 2: Convert to fraction form
    11,126.12/15,343.14 = 9,376.04/x
  3. Step 3: Cross multiply
    11,126.12x = 15,343.14 × 9,376.04
  4. Step 4: Simplify right side
    11,126.12x = 143,857,894.37
  5. Step 5: Solve for x
    x = 143,857,894.37/11,126.12
  6. Step 6: Final answer
    x = 12,929.74

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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.