Home / 13,445.94-20,170.75-4,679.72

Finding the Fourth Proportional to 13,445.94, 20,170.75 and 4,679.72

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Solution

The fourth proportional to 13,445.94, 20,170.75 and 4,679.72 is: 7,020.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.94 : 20,170.75 = 4,679.72 : x
  2. Step 2: Convert to fraction form
    13,445.94/20,170.75 = 4,679.72/x
  3. Step 3: Cross multiply
    13,445.94x = 20,170.75 × 4,679.72
  4. Step 4: Simplify right side
    13,445.94x = 94,393,462.19
  5. Step 5: Solve for x
    x = 94,393,462.19/13,445.94
  6. Step 6: Final answer
    x = 7,020.22

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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.