Home / 10,282.50-15,390.64-6,775.42

Finding the Fourth Proportional to 10,282.50, 15,390.64 and 6,775.42

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Solution

The fourth proportional to 10,282.50, 15,390.64 and 6,775.42 is: 10,141.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.50 : 15,390.64 = 6,775.42 : x
  2. Step 2: Convert to fraction form
    10,282.50/15,390.64 = 6,775.42/x
  3. Step 3: Cross multiply
    10,282.50x = 15,390.64 × 6,775.42
  4. Step 4: Simplify right side
    10,282.50x = 104,278,050.07
  5. Step 5: Solve for x
    x = 104,278,050.07/10,282.50
  6. Step 6: Final answer
    x = 10,141.31

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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.