Home / 13,333.92-18,402.48-7,746.72

Finding the Fourth Proportional to 13,333.92, 18,402.48 and 7,746.72

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Solution

The fourth proportional to 13,333.92, 18,402.48 and 7,746.72 is: 10,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.92 : 18,402.48 = 7,746.72 : x
  2. Step 2: Convert to fraction form
    13,333.92/18,402.48 = 7,746.72/x
  3. Step 3: Cross multiply
    13,333.92x = 18,402.48 × 7,746.72
  4. Step 4: Simplify right side
    13,333.92x = 142,558,859.87
  5. Step 5: Solve for x
    x = 142,558,859.87/13,333.92
  6. Step 6: Final answer
    x = 10,691.44

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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.