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Finding the Fourth Proportional to 9,994.02, 14,987.90 and 3,418.67

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Solution

The fourth proportional to 9,994.02, 14,987.90 and 3,418.67 is: 5,126.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.02 : 14,987.90 = 3,418.67 : x
  2. Step 2: Convert to fraction form
    9,994.02/14,987.90 = 3,418.67/x
  3. Step 3: Cross multiply
    9,994.02x = 14,987.90 × 3,418.67
  4. Step 4: Simplify right side
    9,994.02x = 51,238,730.11
  5. Step 5: Solve for x
    x = 51,238,730.11/9,994.02
  6. Step 6: Final answer
    x = 5,126.94

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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.