Home / 17,115.24-23,632.38-13,130.04

Finding the Fourth Proportional to 17,115.24, 23,632.38 and 13,130.04

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Solution

The fourth proportional to 17,115.24, 23,632.38 and 13,130.04 is: 18,129.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,115.24 : 23,632.38 = 13,130.04 : x
  2. Step 2: Convert to fraction form
    17,115.24/23,632.38 = 13,130.04/x
  3. Step 3: Cross multiply
    17,115.24x = 23,632.38 × 13,130.04
  4. Step 4: Simplify right side
    17,115.24x = 310,294,094.70
  5. Step 5: Solve for x
    x = 310,294,094.70/17,115.24
  6. Step 6: Final answer
    x = 18,129.70

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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.