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Finding the Fourth Proportional to 8,956.68, 13,438.70 and 4,738.84

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Solution

The fourth proportional to 8,956.68, 13,438.70 and 4,738.84 is: 7,110.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.68 : 13,438.70 = 4,738.84 : x
  2. Step 2: Convert to fraction form
    8,956.68/13,438.70 = 4,738.84/x
  3. Step 3: Cross multiply
    8,956.68x = 13,438.70 × 4,738.84
  4. Step 4: Simplify right side
    8,956.68x = 63,683,849.11
  5. Step 5: Solve for x
    x = 63,683,849.11/8,956.68
  6. Step 6: Final answer
    x = 7,110.21

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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.