Home / 13,108.72-19,655.79-4,341.28

Finding the Fourth Proportional to 13,108.72, 19,655.79 and 4,341.28

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Solution

The fourth proportional to 13,108.72, 19,655.79 and 4,341.28 is: 6,509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.72 : 19,655.79 = 4,341.28 : x
  2. Step 2: Convert to fraction form
    13,108.72/19,655.79 = 4,341.28/x
  3. Step 3: Cross multiply
    13,108.72x = 19,655.79 × 4,341.28
  4. Step 4: Simplify right side
    13,108.72x = 85,331,288.01
  5. Step 5: Solve for x
    x = 85,331,288.01/13,108.72
  6. Step 6: Final answer
    x = 6,509.51

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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.