Home / 13,785.20-19,026.60-9,069.92

Finding the Fourth Proportional to 13,785.20, 19,026.60 and 9,069.92

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Solution

The fourth proportional to 13,785.20, 19,026.60 and 9,069.92 is: 12,518.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.20 : 19,026.60 = 9,069.92 : x
  2. Step 2: Convert to fraction form
    13,785.20/19,026.60 = 9,069.92/x
  3. Step 3: Cross multiply
    13,785.20x = 19,026.60 × 9,069.92
  4. Step 4: Simplify right side
    13,785.20x = 172,569,739.87
  5. Step 5: Solve for x
    x = 172,569,739.87/13,785.20
  6. Step 6: Final answer
    x = 12,518.48

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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.