Home / 13,108.10-19,663.22-5,315.90

Finding the Fourth Proportional to 13,108.10, 19,663.22 and 5,315.90

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Solution

The fourth proportional to 13,108.10, 19,663.22 and 5,315.90 is: 7,974.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.10 : 19,663.22 = 5,315.90 : x
  2. Step 2: Convert to fraction form
    13,108.10/19,663.22 = 5,315.90/x
  3. Step 3: Cross multiply
    13,108.10x = 19,663.22 × 5,315.90
  4. Step 4: Simplify right side
    13,108.10x = 104,527,626.17
  5. Step 5: Solve for x
    x = 104,527,626.17/13,108.10
  6. Step 6: Final answer
    x = 7,974.28

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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.