Home / 13,485.72-18,602.68-8,441.19

Finding the Fourth Proportional to 13,485.72, 18,602.68 and 8,441.19

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Solution

The fourth proportional to 13,485.72, 18,602.68 and 8,441.19 is: 11,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.72 : 18,602.68 = 8,441.19 : x
  2. Step 2: Convert to fraction form
    13,485.72/18,602.68 = 8,441.19/x
  3. Step 3: Cross multiply
    13,485.72x = 18,602.68 × 8,441.19
  4. Step 4: Simplify right side
    13,485.72x = 157,028,621.17
  5. Step 5: Solve for x
    x = 157,028,621.17/13,485.72
  6. Step 6: Final answer
    x = 11,644.06

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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.