Home / 11,055.20-16,561.20-10,277.60

Finding the Fourth Proportional to 11,055.20, 16,561.20 and 10,277.60

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Solution

The fourth proportional to 11,055.20, 16,561.20 and 10,277.60 is: 15,396.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,055.20 : 16,561.20 = 10,277.60 : x
  2. Step 2: Convert to fraction form
    11,055.20/16,561.20 = 10,277.60/x
  3. Step 3: Cross multiply
    11,055.20x = 16,561.20 × 10,277.60
  4. Step 4: Simplify right side
    11,055.20x = 170,209,389.12
  5. Step 5: Solve for x
    x = 170,209,389.12/11,055.20
  6. Step 6: Final answer
    x = 15,396.32

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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.