Home / 8,152.90-12,244.20-4,872.40

Finding the Fourth Proportional to 8,152.90, 12,244.20 and 4,872.40

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Solution

The fourth proportional to 8,152.90, 12,244.20 and 4,872.40 is: 7,317.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,152.90 : 12,244.20 = 4,872.40 : x
  2. Step 2: Convert to fraction form
    8,152.90/12,244.20 = 4,872.40/x
  3. Step 3: Cross multiply
    8,152.90x = 12,244.20 × 4,872.40
  4. Step 4: Simplify right side
    8,152.90x = 59,658,640.08
  5. Step 5: Solve for x
    x = 59,658,640.08/8,152.90
  6. Step 6: Final answer
    x = 7,317.47

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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.