Home / 13,508.06-18,650.99-8,730.83

Finding the Fourth Proportional to 13,508.06, 18,650.99 and 8,730.83

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Solution

The fourth proportional to 13,508.06, 18,650.99 and 8,730.83 is: 12,054.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.06 : 18,650.99 = 8,730.83 : x
  2. Step 2: Convert to fraction form
    13,508.06/18,650.99 = 8,730.83/x
  3. Step 3: Cross multiply
    13,508.06x = 18,650.99 × 8,730.83
  4. Step 4: Simplify right side
    13,508.06x = 162,838,529.77
  5. Step 5: Solve for x
    x = 162,838,529.77/13,508.06
  6. Step 6: Final answer
    x = 12,054.92

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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.