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Finding the Fourth Proportional to 13,370.01, 18,451.91 and 7,401.93

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Solution

The fourth proportional to 13,370.01, 18,451.91 and 7,401.93 is: 10,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.01 : 18,451.91 = 7,401.93 : x
  2. Step 2: Convert to fraction form
    13,370.01/18,451.91 = 7,401.93/x
  3. Step 3: Cross multiply
    13,370.01x = 18,451.91 × 7,401.93
  4. Step 4: Simplify right side
    13,370.01x = 136,579,746.19
  5. Step 5: Solve for x
    x = 136,579,746.19/13,370.01
  6. Step 6: Final answer
    x = 10,215.38

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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.