Home / 13,445.58-20,168.48-4,680.47

Finding the Fourth Proportional to 13,445.58, 20,168.48 and 4,680.47

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Solution

The fourth proportional to 13,445.58, 20,168.48 and 4,680.47 is: 7,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.58 : 20,168.48 = 4,680.47 : x
  2. Step 2: Convert to fraction form
    13,445.58/20,168.48 = 4,680.47/x
  3. Step 3: Cross multiply
    13,445.58x = 20,168.48 × 4,680.47
  4. Step 4: Simplify right side
    13,445.58x = 94,397,965.59
  5. Step 5: Solve for x
    x = 94,397,965.59/13,445.58
  6. Step 6: Final answer
    x = 7,020.74

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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.