Home / 9,519.28-13,137.36-5,541.60

Finding the Fourth Proportional to 9,519.28, 13,137.36 and 5,541.60

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Solution

The fourth proportional to 9,519.28, 13,137.36 and 5,541.60 is: 7,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.28 : 13,137.36 = 5,541.60 : x
  2. Step 2: Convert to fraction form
    9,519.28/13,137.36 = 5,541.60/x
  3. Step 3: Cross multiply
    9,519.28x = 13,137.36 × 5,541.60
  4. Step 4: Simplify right side
    9,519.28x = 72,801,994.18
  5. Step 5: Solve for x
    x = 72,801,994.18/9,519.28
  6. Step 6: Final answer
    x = 7,647.85

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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.