Home / 13,336.47-20,004.63-5,438.95

Finding the Fourth Proportional to 13,336.47, 20,004.63 and 5,438.95

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Solution

The fourth proportional to 13,336.47, 20,004.63 and 5,438.95 is: 8,158.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.47 : 20,004.63 = 5,438.95 : x
  2. Step 2: Convert to fraction form
    13,336.47/20,004.63 = 5,438.95/x
  3. Step 3: Cross multiply
    13,336.47x = 20,004.63 × 5,438.95
  4. Step 4: Simplify right side
    13,336.47x = 108,804,150.17
  5. Step 5: Solve for x
    x = 108,804,150.17/13,336.47
  6. Step 6: Final answer
    x = 8,158.39

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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.