Home / 8,139.02-12,210.38-2,592.68

Finding the Fourth Proportional to 8,139.02, 12,210.38 and 2,592.68

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Solution

The fourth proportional to 8,139.02, 12,210.38 and 2,592.68 is: 3,889.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.02 : 12,210.38 = 2,592.68 : x
  2. Step 2: Convert to fraction form
    8,139.02/12,210.38 = 2,592.68/x
  3. Step 3: Cross multiply
    8,139.02x = 12,210.38 × 2,592.68
  4. Step 4: Simplify right side
    8,139.02x = 31,657,625.58
  5. Step 5: Solve for x
    x = 31,657,625.58/8,139.02
  6. Step 6: Final answer
    x = 3,889.61

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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.