Home / 10,661.64-15,993.42-2,870.28

Finding the Fourth Proportional to 10,661.64, 15,993.42 and 2,870.28

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Solution

The fourth proportional to 10,661.64, 15,993.42 and 2,870.28 is: 4,305.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,661.64 : 15,993.42 = 2,870.28 : x
  2. Step 2: Convert to fraction form
    10,661.64/15,993.42 = 2,870.28/x
  3. Step 3: Cross multiply
    10,661.64x = 15,993.42 × 2,870.28
  4. Step 4: Simplify right side
    10,661.64x = 45,905,593.56
  5. Step 5: Solve for x
    x = 45,905,593.56/10,661.64
  6. Step 6: Final answer
    x = 4,305.68

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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.