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Finding the Fourth Proportional to 8,994.72, 13,479.12 and 6,402.72

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Solution

The fourth proportional to 8,994.72, 13,479.12 and 6,402.72 is: 9,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.72 : 13,479.12 = 6,402.72 : x
  2. Step 2: Convert to fraction form
    8,994.72/13,479.12 = 6,402.72/x
  3. Step 3: Cross multiply
    8,994.72x = 13,479.12 × 6,402.72
  4. Step 4: Simplify right side
    8,994.72x = 86,303,031.21
  5. Step 5: Solve for x
    x = 86,303,031.21/8,994.72
  6. Step 6: Final answer
    x = 9,594.85

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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.