Home / 13,364.46-18,443.25-8,656.92

Finding the Fourth Proportional to 13,364.46, 18,443.25 and 8,656.92

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Solution

The fourth proportional to 13,364.46, 18,443.25 and 8,656.92 is: 11,946.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.46 : 18,443.25 = 8,656.92 : x
  2. Step 2: Convert to fraction form
    13,364.46/18,443.25 = 8,656.92/x
  3. Step 3: Cross multiply
    13,364.46x = 18,443.25 × 8,656.92
  4. Step 4: Simplify right side
    13,364.46x = 159,661,739.79
  5. Step 5: Solve for x
    x = 159,661,739.79/13,364.46
  6. Step 6: Final answer
    x = 11,946.74

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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.