Home / 13,635.21-20,440.51-9,477.18

Finding the Fourth Proportional to 13,635.21, 20,440.51 and 9,477.18

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Solution

The fourth proportional to 13,635.21, 20,440.51 and 9,477.18 is: 14,207.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.21 : 20,440.51 = 9,477.18 : x
  2. Step 2: Convert to fraction form
    13,635.21/20,440.51 = 9,477.18/x
  3. Step 3: Cross multiply
    13,635.21x = 20,440.51 × 9,477.18
  4. Step 4: Simplify right side
    13,635.21x = 193,718,404.41
  5. Step 5: Solve for x
    x = 193,718,404.41/13,635.21
  6. Step 6: Final answer
    x = 14,207.21

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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.