Home / 10,639.95-15,960.08-4,066.48

Finding the Fourth Proportional to 10,639.95, 15,960.08 and 4,066.48

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Solution

The fourth proportional to 10,639.95, 15,960.08 and 4,066.48 is: 6,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.95 : 15,960.08 = 4,066.48 : x
  2. Step 2: Convert to fraction form
    10,639.95/15,960.08 = 4,066.48/x
  3. Step 3: Cross multiply
    10,639.95x = 15,960.08 × 4,066.48
  4. Step 4: Simplify right side
    10,639.95x = 64,901,346.12
  5. Step 5: Solve for x
    x = 64,901,346.12/10,639.95
  6. Step 6: Final answer
    x = 6,099.78

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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.