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Finding the Fourth Proportional to 13,785.52, 19,023.76 and 8,044.08

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Solution

The fourth proportional to 13,785.52, 19,023.76 and 8,044.08 is: 11,100.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.52 : 19,023.76 = 8,044.08 : x
  2. Step 2: Convert to fraction form
    13,785.52/19,023.76 = 8,044.08/x
  3. Step 3: Cross multiply
    13,785.52x = 19,023.76 × 8,044.08
  4. Step 4: Simplify right side
    13,785.52x = 153,028,647.34
  5. Step 5: Solve for x
    x = 153,028,647.34/13,785.52
  6. Step 6: Final answer
    x = 11,100.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.