Home / 13,485.69-20,224.44-4,478.01

Finding the Fourth Proportional to 13,485.69, 20,224.44 and 4,478.01

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Solution

The fourth proportional to 13,485.69, 20,224.44 and 4,478.01 is: 6,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.69 : 20,224.44 = 4,478.01 : x
  2. Step 2: Convert to fraction form
    13,485.69/20,224.44 = 4,478.01/x
  3. Step 3: Cross multiply
    13,485.69x = 20,224.44 × 4,478.01
  4. Step 4: Simplify right side
    13,485.69x = 90,565,244.56
  5. Step 5: Solve for x
    x = 90,565,244.56/13,485.69
  6. Step 6: Final answer
    x = 6,715.66

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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.