Home / 13,354.49-20,031.65-5,455.32

Finding the Fourth Proportional to 13,354.49, 20,031.65 and 5,455.32

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Solution

The fourth proportional to 13,354.49, 20,031.65 and 5,455.32 is: 8,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.49 : 20,031.65 = 5,455.32 : x
  2. Step 2: Convert to fraction form
    13,354.49/20,031.65 = 5,455.32/x
  3. Step 3: Cross multiply
    13,354.49x = 20,031.65 × 5,455.32
  4. Step 4: Simplify right side
    13,354.49x = 109,279,033.60
  5. Step 5: Solve for x
    x = 109,279,033.60/13,354.49
  6. Step 6: Final answer
    x = 8,182.95

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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.