Home / 18,890.52-28,302.94-13,256.24

Finding the Fourth Proportional to 18,890.52, 28,302.94 and 13,256.24

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Solution

The fourth proportional to 18,890.52, 28,302.94 and 13,256.24 is: 19,861.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.52 : 28,302.94 = 13,256.24 : x
  2. Step 2: Convert to fraction form
    18,890.52/28,302.94 = 13,256.24/x
  3. Step 3: Cross multiply
    18,890.52x = 28,302.94 × 13,256.24
  4. Step 4: Simplify right side
    18,890.52x = 375,190,565.35
  5. Step 5: Solve for x
    x = 375,190,565.35/18,890.52
  6. Step 6: Final answer
    x = 19,861.31

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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.