Home / 13,042.16-19,563.24-5,145.20

Finding the Fourth Proportional to 13,042.16, 19,563.24 and 5,145.20

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Solution

The fourth proportional to 13,042.16, 19,563.24 and 5,145.20 is: 7,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,042.16 : 19,563.24 = 5,145.20 : x
  2. Step 2: Convert to fraction form
    13,042.16/19,563.24 = 5,145.20/x
  3. Step 3: Cross multiply
    13,042.16x = 19,563.24 × 5,145.20
  4. Step 4: Simplify right side
    13,042.16x = 100,656,782.45
  5. Step 5: Solve for x
    x = 100,656,782.45/13,042.16
  6. Step 6: Final answer
    x = 7,717.80

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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.