Home / 13,285.20-19,929.77-8,283.50

Finding the Fourth Proportional to 13,285.20, 19,929.77 and 8,283.50

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Solution

The fourth proportional to 13,285.20, 19,929.77 and 8,283.50 is: 12,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.20 : 19,929.77 = 8,283.50 : x
  2. Step 2: Convert to fraction form
    13,285.20/19,929.77 = 8,283.50/x
  3. Step 3: Cross multiply
    13,285.20x = 19,929.77 × 8,283.50
  4. Step 4: Simplify right side
    13,285.20x = 165,088,108.73
  5. Step 5: Solve for x
    x = 165,088,108.73/13,285.20
  6. Step 6: Final answer
    x = 12,426.47

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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.