Home / 9,119.01-13,680.45-2,880.84

Finding the Fourth Proportional to 9,119.01, 13,680.45 and 2,880.84

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Solution

The fourth proportional to 9,119.01, 13,680.45 and 2,880.84 is: 4,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.01 : 13,680.45 = 2,880.84 : x
  2. Step 2: Convert to fraction form
    9,119.01/13,680.45 = 2,880.84/x
  3. Step 3: Cross multiply
    9,119.01x = 13,680.45 × 2,880.84
  4. Step 4: Simplify right side
    9,119.01x = 39,411,187.58
  5. Step 5: Solve for x
    x = 39,411,187.58/9,119.01
  6. Step 6: Final answer
    x = 4,321.87

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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.