Home / 13,335.70-18,395.35-8,622.76

Finding the Fourth Proportional to 13,335.70, 18,395.35 and 8,622.76

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Solution

The fourth proportional to 13,335.70, 18,395.35 and 8,622.76 is: 11,894.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.70 : 18,395.35 = 8,622.76 : x
  2. Step 2: Convert to fraction form
    13,335.70/18,395.35 = 8,622.76/x
  3. Step 3: Cross multiply
    13,335.70x = 18,395.35 × 8,622.76
  4. Step 4: Simplify right side
    13,335.70x = 158,618,744.93
  5. Step 5: Solve for x
    x = 158,618,744.93/13,335.70
  6. Step 6: Final answer
    x = 11,894.29

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Double scale
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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.