Home / 12,842.92-19,261.50-7,650.28

Finding the Fourth Proportional to 12,842.92, 19,261.50 and 7,650.28

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Solution

The fourth proportional to 12,842.92, 19,261.50 and 7,650.28 is: 11,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.92 : 19,261.50 = 7,650.28 : x
  2. Step 2: Convert to fraction form
    12,842.92/19,261.50 = 7,650.28/x
  3. Step 3: Cross multiply
    12,842.92x = 19,261.50 × 7,650.28
  4. Step 4: Simplify right side
    12,842.92x = 147,355,868.22
  5. Step 5: Solve for x
    x = 147,355,868.22/12,842.92
  6. Step 6: Final answer
    x = 11,473.70

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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.