Home / 8,720.54-13,083.53-2,881.25

Finding the Fourth Proportional to 8,720.54, 13,083.53 and 2,881.25

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Solution

The fourth proportional to 8,720.54, 13,083.53 and 2,881.25 is: 4,322.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.54 : 13,083.53 = 2,881.25 : x
  2. Step 2: Convert to fraction form
    8,720.54/13,083.53 = 2,881.25/x
  3. Step 3: Cross multiply
    8,720.54x = 13,083.53 × 2,881.25
  4. Step 4: Simplify right side
    8,720.54x = 37,696,840.99
  5. Step 5: Solve for x
    x = 37,696,840.99/8,720.54
  6. Step 6: Final answer
    x = 4,322.77

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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.