Home / 13,213.32-18,258.54-9,622.02

Finding the Fourth Proportional to 13,213.32, 18,258.54 and 9,622.02

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Solution

The fourth proportional to 13,213.32, 18,258.54 and 9,622.02 is: 13,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.32 : 18,258.54 = 9,622.02 : x
  2. Step 2: Convert to fraction form
    13,213.32/18,258.54 = 9,622.02/x
  3. Step 3: Cross multiply
    13,213.32x = 18,258.54 × 9,622.02
  4. Step 4: Simplify right side
    13,213.32x = 175,684,037.05
  5. Step 5: Solve for x
    x = 175,684,037.05/13,213.32
  6. Step 6: Final answer
    x = 13,295.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.