Home / 13,455.03-20,178.26-4,447.47

Finding the Fourth Proportional to 13,455.03, 20,178.26 and 4,447.47

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Solution

The fourth proportional to 13,455.03, 20,178.26 and 4,447.47 is: 6,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.03 : 20,178.26 = 4,447.47 : x
  2. Step 2: Convert to fraction form
    13,455.03/20,178.26 = 4,447.47/x
  3. Step 3: Cross multiply
    13,455.03x = 20,178.26 × 4,447.47
  4. Step 4: Simplify right side
    13,455.03x = 89,742,206.00
  5. Step 5: Solve for x
    x = 89,742,206.00/13,455.03
  6. Step 6: Final answer
    x = 6,669.79

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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.