Home / 8,622-12,934.56-5,702.72

Finding the Fourth Proportional to 8,622, 12,934.56 and 5,702.72

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Solution

The fourth proportional to 8,622, 12,934.56 and 5,702.72 is: 8,555.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622 : 12,934.56 = 5,702.72 : x
  2. Step 2: Convert to fraction form
    8,622/12,934.56 = 5,702.72/x
  3. Step 3: Cross multiply
    8,622x = 12,934.56 × 5,702.72
  4. Step 4: Simplify right side
    8,622x = 73,762,174.00
  5. Step 5: Solve for x
    x = 73,762,174.00/8,622
  6. Step 6: Final answer
    x = 8,555.11

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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.