Home / 13,375.51-20,063.26-5,478.16

Finding the Fourth Proportional to 13,375.51, 20,063.26 and 5,478.16

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Solution

The fourth proportional to 13,375.51, 20,063.26 and 5,478.16 is: 8,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.51 : 20,063.26 = 5,478.16 : x
  2. Step 2: Convert to fraction form
    13,375.51/20,063.26 = 5,478.16/x
  3. Step 3: Cross multiply
    13,375.51x = 20,063.26 × 5,478.16
  4. Step 4: Simplify right side
    13,375.51x = 109,909,748.40
  5. Step 5: Solve for x
    x = 109,909,748.40/13,375.51
  6. Step 6: Final answer
    x = 8,217.24

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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.