Home / 13,415.51-20,130.09-5,524.10

Finding the Fourth Proportional to 13,415.51, 20,130.09 and 5,524.10

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Solution

The fourth proportional to 13,415.51, 20,130.09 and 5,524.10 is: 8,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,415.51 : 20,130.09 = 5,524.10 : x
  2. Step 2: Convert to fraction form
    13,415.51/20,130.09 = 5,524.10/x
  3. Step 3: Cross multiply
    13,415.51x = 20,130.09 × 5,524.10
  4. Step 4: Simplify right side
    13,415.51x = 111,200,630.17
  5. Step 5: Solve for x
    x = 111,200,630.17/13,415.51
  6. Step 6: Final answer
    x = 8,288.96

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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.