Home / 8,639.02-12,956.63-3,092.75

Finding the Fourth Proportional to 8,639.02, 12,956.63 and 3,092.75

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Solution

The fourth proportional to 8,639.02, 12,956.63 and 3,092.75 is: 4,638.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.02 : 12,956.63 = 3,092.75 : x
  2. Step 2: Convert to fraction form
    8,639.02/12,956.63 = 3,092.75/x
  3. Step 3: Cross multiply
    8,639.02x = 12,956.63 × 3,092.75
  4. Step 4: Simplify right side
    8,639.02x = 40,071,537.19
  5. Step 5: Solve for x
    x = 40,071,537.19/8,639.02
  6. Step 6: Final answer
    x = 4,638.44

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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.