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Finding the Fourth Proportional to 13,437.84, 20,154.84 and 3,577.98

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Solution

The fourth proportional to 13,437.84, 20,154.84 and 3,577.98 is: 5,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.84 : 20,154.84 = 3,577.98 : x
  2. Step 2: Convert to fraction form
    13,437.84/20,154.84 = 3,577.98/x
  3. Step 3: Cross multiply
    13,437.84x = 20,154.84 × 3,577.98
  4. Step 4: Simplify right side
    13,437.84x = 72,113,614.42
  5. Step 5: Solve for x
    x = 72,113,614.42/13,437.84
  6. Step 6: Final answer
    x = 5,366.46

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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.