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Finding the Fourth Proportional to 8,360.30, 12,522.49 and 7,869.67

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Solution

The fourth proportional to 8,360.30, 12,522.49 and 7,869.67 is: 11,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.30 : 12,522.49 = 7,869.67 : x
  2. Step 2: Convert to fraction form
    8,360.30/12,522.49 = 7,869.67/x
  3. Step 3: Cross multiply
    8,360.30x = 12,522.49 × 7,869.67
  4. Step 4: Simplify right side
    8,360.30x = 98,547,863.88
  5. Step 5: Solve for x
    x = 98,547,863.88/8,360.30
  6. Step 6: Final answer
    x = 11,787.60

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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.