Home / 9,153.60-13,728.57-2,578.02

Finding the Fourth Proportional to 9,153.60, 13,728.57 and 2,578.02

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Solution

The fourth proportional to 9,153.60, 13,728.57 and 2,578.02 is: 3,866.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153.60 : 13,728.57 = 2,578.02 : x
  2. Step 2: Convert to fraction form
    9,153.60/13,728.57 = 2,578.02/x
  3. Step 3: Cross multiply
    9,153.60x = 13,728.57 × 2,578.02
  4. Step 4: Simplify right side
    9,153.60x = 35,392,459.39
  5. Step 5: Solve for x
    x = 35,392,459.39/9,153.60
  6. Step 6: Final answer
    x = 3,866.51

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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.