Home / 10,720.53-16,053.10-7,399.03

Finding the Fourth Proportional to 10,720.53, 16,053.10 and 7,399.03

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Solution

The fourth proportional to 10,720.53, 16,053.10 and 7,399.03 is: 11,079.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.53 : 16,053.10 = 7,399.03 : x
  2. Step 2: Convert to fraction form
    10,720.53/16,053.10 = 7,399.03/x
  3. Step 3: Cross multiply
    10,720.53x = 16,053.10 × 7,399.03
  4. Step 4: Simplify right side
    10,720.53x = 118,777,251.23
  5. Step 5: Solve for x
    x = 118,777,251.23/10,720.53
  6. Step 6: Final answer
    x = 11,079.42

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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.