Home / 12,561.08-18,826.14-5,160.92

Finding the Fourth Proportional to 12,561.08, 18,826.14 and 5,160.92

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Solution

The fourth proportional to 12,561.08, 18,826.14 and 5,160.92 is: 7,735.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.08 : 18,826.14 = 5,160.92 : x
  2. Step 2: Convert to fraction form
    12,561.08/18,826.14 = 5,160.92/x
  3. Step 3: Cross multiply
    12,561.08x = 18,826.14 × 5,160.92
  4. Step 4: Simplify right side
    12,561.08x = 97,160,202.45
  5. Step 5: Solve for x
    x = 97,160,202.45/12,561.08
  6. Step 6: Final answer
    x = 7,735.02

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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.