Home / 13,157.92-18,154.64-7,567.52

Finding the Fourth Proportional to 13,157.92, 18,154.64 and 7,567.52

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Solution

The fourth proportional to 13,157.92, 18,154.64 and 7,567.52 is: 10,441.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.92 : 18,154.64 = 7,567.52 : x
  2. Step 2: Convert to fraction form
    13,157.92/18,154.64 = 7,567.52/x
  3. Step 3: Cross multiply
    13,157.92x = 18,154.64 × 7,567.52
  4. Step 4: Simplify right side
    13,157.92x = 137,385,601.29
  5. Step 5: Solve for x
    x = 137,385,601.29/13,157.92
  6. Step 6: Final answer
    x = 10,441.29

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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.