Home / 10,282.40-15,411.45-7,682.30

Finding the Fourth Proportional to 10,282.40, 15,411.45 and 7,682.30

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Solution

The fourth proportional to 10,282.40, 15,411.45 and 7,682.30 is: 11,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.40 : 15,411.45 = 7,682.30 : x
  2. Step 2: Convert to fraction form
    10,282.40/15,411.45 = 7,682.30/x
  3. Step 3: Cross multiply
    10,282.40x = 15,411.45 × 7,682.30
  4. Step 4: Simplify right side
    10,282.40x = 118,395,382.34
  5. Step 5: Solve for x
    x = 118,395,382.34/10,282.40
  6. Step 6: Final answer
    x = 11,514.37

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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.