Home / 13,158.70-19,738.05-4,394.30

Finding the Fourth Proportional to 13,158.70, 19,738.05 and 4,394.30

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Solution

The fourth proportional to 13,158.70, 19,738.05 and 4,394.30 is: 6,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158.70 : 19,738.05 = 4,394.30 : x
  2. Step 2: Convert to fraction form
    13,158.70/19,738.05 = 4,394.30/x
  3. Step 3: Cross multiply
    13,158.70x = 19,738.05 × 4,394.30
  4. Step 4: Simplify right side
    13,158.70x = 86,734,946.05
  5. Step 5: Solve for x
    x = 86,734,946.05/13,158.70
  6. Step 6: Final answer
    x = 6,591.45

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Similar ratio
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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.