Home / 11,561.16-17,343.60-4,989.36

Finding the Fourth Proportional to 11,561.16, 17,343.60 and 4,989.36

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Solution

The fourth proportional to 11,561.16, 17,343.60 and 4,989.36 is: 7,484.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,561.16 : 17,343.60 = 4,989.36 : x
  2. Step 2: Convert to fraction form
    11,561.16/17,343.60 = 4,989.36/x
  3. Step 3: Cross multiply
    11,561.16x = 17,343.60 × 4,989.36
  4. Step 4: Simplify right side
    11,561.16x = 86,533,464.10
  5. Step 5: Solve for x
    x = 86,533,464.10/11,561.16
  6. Step 6: Final answer
    x = 7,484.84

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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.