Home / 10,278.62-15,424.10-4,435.22

Finding the Fourth Proportional to 10,278.62, 15,424.10 and 4,435.22

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Solution

The fourth proportional to 10,278.62, 15,424.10 and 4,435.22 is: 6,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.62 : 15,424.10 = 4,435.22 : x
  2. Step 2: Convert to fraction form
    10,278.62/15,424.10 = 4,435.22/x
  3. Step 3: Cross multiply
    10,278.62x = 15,424.10 × 4,435.22
  4. Step 4: Simplify right side
    10,278.62x = 68,409,357.95
  5. Step 5: Solve for x
    x = 68,409,357.95/10,278.62
  6. Step 6: Final answer
    x = 6,655.50

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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.