Home / 13,937.25-20,911.32-6,140.61

Finding the Fourth Proportional to 13,937.25, 20,911.32 and 6,140.61

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Solution

The fourth proportional to 13,937.25, 20,911.32 and 6,140.61 is: 9,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.25 : 20,911.32 = 6,140.61 : x
  2. Step 2: Convert to fraction form
    13,937.25/20,911.32 = 6,140.61/x
  3. Step 3: Cross multiply
    13,937.25x = 20,911.32 × 6,140.61
  4. Step 4: Simplify right side
    13,937.25x = 128,408,260.71
  5. Step 5: Solve for x
    x = 128,408,260.71/13,937.25
  6. Step 6: Final answer
    x = 9,213.31

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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.