Home / 10,291.42-15,437.12-3,717.58

Finding the Fourth Proportional to 10,291.42, 15,437.12 and 3,717.58

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Solution

The fourth proportional to 10,291.42, 15,437.12 and 3,717.58 is: 5,576.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.42 : 15,437.12 = 3,717.58 : x
  2. Step 2: Convert to fraction form
    10,291.42/15,437.12 = 3,717.58/x
  3. Step 3: Cross multiply
    10,291.42x = 15,437.12 × 3,717.58
  4. Step 4: Simplify right side
    10,291.42x = 57,388,728.57
  5. Step 5: Solve for x
    x = 57,388,728.57/10,291.42
  6. Step 6: Final answer
    x = 5,576.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.