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Finding the Fourth Proportional to 9,479.90, 14,219.90 and 2,459.43

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Solution

The fourth proportional to 9,479.90, 14,219.90 and 2,459.43 is: 3,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.90 : 14,219.90 = 2,459.43 : x
  2. Step 2: Convert to fraction form
    9,479.90/14,219.90 = 2,459.43/x
  3. Step 3: Cross multiply
    9,479.90x = 14,219.90 × 2,459.43
  4. Step 4: Simplify right side
    9,479.90x = 34,972,859.42
  5. Step 5: Solve for x
    x = 34,972,859.42/9,479.90
  6. Step 6: Final answer
    x = 3,689.16

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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.