Home / 14,693.50-20,275.31-8,320.83

Finding the Fourth Proportional to 14,693.50, 20,275.31 and 8,320.83

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Solution

The fourth proportional to 14,693.50, 20,275.31 and 8,320.83 is: 11,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,693.50 : 20,275.31 = 8,320.83 : x
  2. Step 2: Convert to fraction form
    14,693.50/20,275.31 = 8,320.83/x
  3. Step 3: Cross multiply
    14,693.50x = 20,275.31 × 8,320.83
  4. Step 4: Simplify right side
    14,693.50x = 168,707,352.48
  5. Step 5: Solve for x
    x = 168,707,352.48/14,693.50
  6. Step 6: Final answer
    x = 11,481.77

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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.