Home / 10,121.17-13,966.55-5,583.58

Finding the Fourth Proportional to 10,121.17, 13,966.55 and 5,583.58

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Solution

The fourth proportional to 10,121.17, 13,966.55 and 5,583.58 is: 7,704.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.17 : 13,966.55 = 5,583.58 : x
  2. Step 2: Convert to fraction form
    10,121.17/13,966.55 = 5,583.58/x
  3. Step 3: Cross multiply
    10,121.17x = 13,966.55 × 5,583.58
  4. Step 4: Simplify right side
    10,121.17x = 77,983,349.25
  5. Step 5: Solve for x
    x = 77,983,349.25/10,121.17
  6. Step 6: Final answer
    x = 7,704.97

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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.