Home / 8,172.60-12,259.34-2,625.51

Finding the Fourth Proportional to 8,172.60, 12,259.34 and 2,625.51

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Solution

The fourth proportional to 8,172.60, 12,259.34 and 2,625.51 is: 3,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.60 : 12,259.34 = 2,625.51 : x
  2. Step 2: Convert to fraction form
    8,172.60/12,259.34 = 2,625.51/x
  3. Step 3: Cross multiply
    8,172.60x = 12,259.34 × 2,625.51
  4. Step 4: Simplify right side
    8,172.60x = 32,186,945.34
  5. Step 5: Solve for x
    x = 32,186,945.34/8,172.60
  6. Step 6: Final answer
    x = 3,938.40

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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.