Home / 12,820.96-19,223.68-6,240.56

Finding the Fourth Proportional to 12,820.96, 19,223.68 and 6,240.56

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Solution

The fourth proportional to 12,820.96, 19,223.68 and 6,240.56 is: 9,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820.96 : 19,223.68 = 6,240.56 : x
  2. Step 2: Convert to fraction form
    12,820.96/19,223.68 = 6,240.56/x
  3. Step 3: Cross multiply
    12,820.96x = 19,223.68 × 6,240.56
  4. Step 4: Simplify right side
    12,820.96x = 119,966,528.46
  5. Step 5: Solve for x
    x = 119,966,528.46/12,820.96
  6. Step 6: Final answer
    x = 9,357.06

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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.