Home / 13,531.50-20,279.43-5,730.66

Finding the Fourth Proportional to 13,531.50, 20,279.43 and 5,730.66

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Solution

The fourth proportional to 13,531.50, 20,279.43 and 5,730.66 is: 8,588.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.50 : 20,279.43 = 5,730.66 : x
  2. Step 2: Convert to fraction form
    13,531.50/20,279.43 = 5,730.66/x
  3. Step 3: Cross multiply
    13,531.50x = 20,279.43 × 5,730.66
  4. Step 4: Simplify right side
    13,531.50x = 116,214,518.32
  5. Step 5: Solve for x
    x = 116,214,518.32/13,531.50
  6. Step 6: Final answer
    x = 8,588.44

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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.