Home / 8,671.02-12,998.77-3,123.06

Finding the Fourth Proportional to 8,671.02, 12,998.77 and 3,123.06

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Solution

The fourth proportional to 8,671.02, 12,998.77 and 3,123.06 is: 4,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.02 : 12,998.77 = 3,123.06 : x
  2. Step 2: Convert to fraction form
    8,671.02/12,998.77 = 3,123.06/x
  3. Step 3: Cross multiply
    8,671.02x = 12,998.77 × 3,123.06
  4. Step 4: Simplify right side
    8,671.02x = 40,595,938.64
  5. Step 5: Solve for x
    x = 40,595,938.64/8,671.02
  6. Step 6: Final answer
    x = 4,681.80

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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.