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Finding the Fourth Proportional to 8,557.65, 12,838.50 and 3,627.59

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Solution

The fourth proportional to 8,557.65, 12,838.50 and 3,627.59 is: 5,442.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.65 : 12,838.50 = 3,627.59 : x
  2. Step 2: Convert to fraction form
    8,557.65/12,838.50 = 3,627.59/x
  3. Step 3: Cross multiply
    8,557.65x = 12,838.50 × 3,627.59
  4. Step 4: Simplify right side
    8,557.65x = 46,572,750.02
  5. Step 5: Solve for x
    x = 46,572,750.02/8,557.65
  6. Step 6: Final answer
    x = 5,442.24

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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.