Home / 13,168.23-18,173.85-7,505.01

Finding the Fourth Proportional to 13,168.23, 18,173.85 and 7,505.01

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Solution

The fourth proportional to 13,168.23, 18,173.85 and 7,505.01 is: 10,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.23 : 18,173.85 = 7,505.01 : x
  2. Step 2: Convert to fraction form
    13,168.23/18,173.85 = 7,505.01/x
  3. Step 3: Cross multiply
    13,168.23x = 18,173.85 × 7,505.01
  4. Step 4: Simplify right side
    13,168.23x = 136,394,925.99
  5. Step 5: Solve for x
    x = 136,394,925.99/13,168.23
  6. Step 6: Final answer
    x = 10,357.88

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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.