Home / 13,087.80-19,631.16-3,727.80

Finding the Fourth Proportional to 13,087.80, 19,631.16 and 3,727.80

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Solution

The fourth proportional to 13,087.80, 19,631.16 and 3,727.80 is: 5,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.80 : 19,631.16 = 3,727.80 : x
  2. Step 2: Convert to fraction form
    13,087.80/19,631.16 = 3,727.80/x
  3. Step 3: Cross multiply
    13,087.80x = 19,631.16 × 3,727.80
  4. Step 4: Simplify right side
    13,087.80x = 73,181,038.25
  5. Step 5: Solve for x
    x = 73,181,038.25/13,087.80
  6. Step 6: Final answer
    x = 5,591.55

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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.