Home / 11,462.50-15,818.90-6,428.33

Finding the Fourth Proportional to 11,462.50, 15,818.90 and 6,428.33

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Solution

The fourth proportional to 11,462.50, 15,818.90 and 6,428.33 is: 8,871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,462.50 : 15,818.90 = 6,428.33 : x
  2. Step 2: Convert to fraction form
    11,462.50/15,818.90 = 6,428.33/x
  3. Step 3: Cross multiply
    11,462.50x = 15,818.90 × 6,428.33
  4. Step 4: Simplify right side
    11,462.50x = 101,689,057.52
  5. Step 5: Solve for x
    x = 101,689,057.52/11,462.50
  6. Step 6: Final answer
    x = 8,871.46

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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.