Home / 13,748.64-20,622.60-4,389.24

Finding the Fourth Proportional to 13,748.64, 20,622.60 and 4,389.24

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Solution

The fourth proportional to 13,748.64, 20,622.60 and 4,389.24 is: 6,583.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.64 : 20,622.60 = 4,389.24 : x
  2. Step 2: Convert to fraction form
    13,748.64/20,622.60 = 4,389.24/x
  3. Step 3: Cross multiply
    13,748.64x = 20,622.60 × 4,389.24
  4. Step 4: Simplify right side
    13,748.64x = 90,517,502.16
  5. Step 5: Solve for x
    x = 90,517,502.16/13,748.64
  6. Step 6: Final answer
    x = 6,583.74

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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.