Home / 13,465.30-18,579.40-8,157.04

Finding the Fourth Proportional to 13,465.30, 18,579.40 and 8,157.04

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Solution

The fourth proportional to 13,465.30, 18,579.40 and 8,157.04 is: 11,255.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.30 : 18,579.40 = 8,157.04 : x
  2. Step 2: Convert to fraction form
    13,465.30/18,579.40 = 8,157.04/x
  3. Step 3: Cross multiply
    13,465.30x = 18,579.40 × 8,157.04
  4. Step 4: Simplify right side
    13,465.30x = 151,552,908.98
  5. Step 5: Solve for x
    x = 151,552,908.98/13,465.30
  6. Step 6: Final answer
    x = 11,255.07

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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.