Home / 13,402.37-20,103.56-7,894.10

Finding the Fourth Proportional to 13,402.37, 20,103.56 and 7,894.10

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Solution

The fourth proportional to 13,402.37, 20,103.56 and 7,894.10 is: 11,841.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.37 : 20,103.56 = 7,894.10 : x
  2. Step 2: Convert to fraction form
    13,402.37/20,103.56 = 7,894.10/x
  3. Step 3: Cross multiply
    13,402.37x = 20,103.56 × 7,894.10
  4. Step 4: Simplify right side
    13,402.37x = 158,699,513.00
  5. Step 5: Solve for x
    x = 158,699,513.00/13,402.37
  6. Step 6: Final answer
    x = 11,841.15

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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.