Home / 8,172.25-11,277.66-4,985.53

Finding the Fourth Proportional to 8,172.25, 11,277.66 and 4,985.53

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Solution

The fourth proportional to 8,172.25, 11,277.66 and 4,985.53 is: 6,880.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.25 : 11,277.66 = 4,985.53 : x
  2. Step 2: Convert to fraction form
    8,172.25/11,277.66 = 4,985.53/x
  3. Step 3: Cross multiply
    8,172.25x = 11,277.66 × 4,985.53
  4. Step 4: Simplify right side
    8,172.25x = 56,225,112.26
  5. Step 5: Solve for x
    x = 56,225,112.26/8,172.25
  6. Step 6: Final answer
    x = 6,880.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.