Home / 10,330.45-15,490.55-4,406.42

Finding the Fourth Proportional to 10,330.45, 15,490.55 and 4,406.42

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Solution

The fourth proportional to 10,330.45, 15,490.55 and 4,406.42 is: 6,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.45 : 15,490.55 = 4,406.42 : x
  2. Step 2: Convert to fraction form
    10,330.45/15,490.55 = 4,406.42/x
  3. Step 3: Cross multiply
    10,330.45x = 15,490.55 × 4,406.42
  4. Step 4: Simplify right side
    10,330.45x = 68,257,919.07
  5. Step 5: Solve for x
    x = 68,257,919.07/10,330.45
  6. Step 6: Final answer
    x = 6,607.45

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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.