Home / 10,720.53-16,079.43-3,325.05

Finding the Fourth Proportional to 10,720.53, 16,079.43 and 3,325.05

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Solution

The fourth proportional to 10,720.53, 16,079.43 and 3,325.05 is: 4,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.53 : 16,079.43 = 3,325.05 : x
  2. Step 2: Convert to fraction form
    10,720.53/16,079.43 = 3,325.05/x
  3. Step 3: Cross multiply
    10,720.53x = 16,079.43 × 3,325.05
  4. Step 4: Simplify right side
    10,720.53x = 53,464,908.72
  5. Step 5: Solve for x
    x = 53,464,908.72/10,720.53
  6. Step 6: Final answer
    x = 4,987.15

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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.