Home / 8,671.02-13,008.78-2,431.05

Finding the Fourth Proportional to 8,671.02, 13,008.78 and 2,431.05

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Solution

The fourth proportional to 8,671.02, 13,008.78 and 2,431.05 is: 3,647.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.02 : 13,008.78 = 2,431.05 : x
  2. Step 2: Convert to fraction form
    8,671.02/13,008.78 = 2,431.05/x
  3. Step 3: Cross multiply
    8,671.02x = 13,008.78 × 2,431.05
  4. Step 4: Simplify right side
    8,671.02x = 31,624,994.62
  5. Step 5: Solve for x
    x = 31,624,994.62/8,671.02
  6. Step 6: Final answer
    x = 3,647.21

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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.