Home / 13,158.58-19,739.94-5,261.08

Finding the Fourth Proportional to 13,158.58, 19,739.94 and 5,261.08

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Solution

The fourth proportional to 13,158.58, 19,739.94 and 5,261.08 is: 7,892.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.58 : 19,739.94 = 5,261.08 : x
  2. Step 2: Convert to fraction form
    13,158.58/19,739.94 = 5,261.08/x
  3. Step 3: Cross multiply
    13,158.58x = 19,739.94 × 5,261.08
  4. Step 4: Simplify right side
    13,158.58x = 103,853,403.54
  5. Step 5: Solve for x
    x = 103,853,403.54/13,158.58
  6. Step 6: Final answer
    x = 7,892.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.