Home / 12,880.78-19,322.70-4,559.08

Finding the Fourth Proportional to 12,880.78, 19,322.70 and 4,559.08

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Solution

The fourth proportional to 12,880.78, 19,322.70 and 4,559.08 is: 6,839.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.78 : 19,322.70 = 4,559.08 : x
  2. Step 2: Convert to fraction form
    12,880.78/19,322.70 = 4,559.08/x
  3. Step 3: Cross multiply
    12,880.78x = 19,322.70 × 4,559.08
  4. Step 4: Simplify right side
    12,880.78x = 88,093,735.12
  5. Step 5: Solve for x
    x = 88,093,735.12/12,880.78
  6. Step 6: Final answer
    x = 6,839.16

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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.