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Finding the Fourth Proportional to 8,364.82, 12,547.22 and 2,521.43

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Solution

The fourth proportional to 8,364.82, 12,547.22 and 2,521.43 is: 3,782.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.82 : 12,547.22 = 2,521.43 : x
  2. Step 2: Convert to fraction form
    8,364.82/12,547.22 = 2,521.43/x
  3. Step 3: Cross multiply
    8,364.82x = 12,547.22 × 2,521.43
  4. Step 4: Simplify right side
    8,364.82x = 31,636,861.58
  5. Step 5: Solve for x
    x = 31,636,861.58/8,364.82
  6. Step 6: Final answer
    x = 3,782.13

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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.