Home / 13,451.21-20,176.91-4,686.11

Finding the Fourth Proportional to 13,451.21, 20,176.91 and 4,686.11

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Solution

The fourth proportional to 13,451.21, 20,176.91 and 4,686.11 is: 7,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.21 : 20,176.91 = 4,686.11 : x
  2. Step 2: Convert to fraction form
    13,451.21/20,176.91 = 4,686.11/x
  3. Step 3: Cross multiply
    13,451.21x = 20,176.91 × 4,686.11
  4. Step 4: Simplify right side
    13,451.21x = 94,551,219.72
  5. Step 5: Solve for x
    x = 94,551,219.72/13,451.21
  6. Step 6: Final answer
    x = 7,029.20

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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.