Home / 13,564.08-18,719.10-8,258.04

Finding the Fourth Proportional to 13,564.08, 18,719.10 and 8,258.04

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Solution

The fourth proportional to 13,564.08, 18,719.10 and 8,258.04 is: 11,396.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.08 : 18,719.10 = 8,258.04 : x
  2. Step 2: Convert to fraction form
    13,564.08/18,719.10 = 8,258.04/x
  3. Step 3: Cross multiply
    13,564.08x = 18,719.10 × 8,258.04
  4. Step 4: Simplify right side
    13,564.08x = 154,583,076.56
  5. Step 5: Solve for x
    x = 154,583,076.56/13,564.08
  6. Step 6: Final answer
    x = 11,396.50

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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.