Home / 17,128.53-23,621.63-11,158.02

Finding the Fourth Proportional to 17,128.53, 23,621.63 and 11,158.02

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Solution

The fourth proportional to 17,128.53, 23,621.63 and 11,158.02 is: 15,387.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.53 : 23,621.63 = 11,158.02 : x
  2. Step 2: Convert to fraction form
    17,128.53/23,621.63 = 11,158.02/x
  3. Step 3: Cross multiply
    17,128.53x = 23,621.63 × 11,158.02
  4. Step 4: Simplify right side
    17,128.53x = 263,570,564.18
  5. Step 5: Solve for x
    x = 263,570,564.18/17,128.53
  6. Step 6: Final answer
    x = 15,387.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.