Home / 13,455.52-20,160.04-12,085.91

Finding the Fourth Proportional to 13,455.52, 20,160.04 and 12,085.91

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Solution

The fourth proportional to 13,455.52, 20,160.04 and 12,085.91 is: 18,107.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.52 : 20,160.04 = 12,085.91 : x
  2. Step 2: Convert to fraction form
    13,455.52/20,160.04 = 12,085.91/x
  3. Step 3: Cross multiply
    13,455.52x = 20,160.04 × 12,085.91
  4. Step 4: Simplify right side
    13,455.52x = 243,652,396.28
  5. Step 5: Solve for x
    x = 243,652,396.28/13,455.52
  6. Step 6: Final answer
    x = 18,107.99

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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.