Home / 9,153.24-12,631.68-5,174.58

Finding the Fourth Proportional to 9,153.24, 12,631.68 and 5,174.58

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Solution

The fourth proportional to 9,153.24, 12,631.68 and 5,174.58 is: 7,141.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.24 : 12,631.68 = 5,174.58 : x
  2. Step 2: Convert to fraction form
    9,153.24/12,631.68 = 5,174.58/x
  3. Step 3: Cross multiply
    9,153.24x = 12,631.68 × 5,174.58
  4. Step 4: Simplify right side
    9,153.24x = 65,363,686.06
  5. Step 5: Solve for x
    x = 65,363,686.06/9,153.24
  6. Step 6: Final answer
    x = 7,141.05

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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.