Home / 13,376.29-20,054.67-8,185.81

Finding the Fourth Proportional to 13,376.29, 20,054.67 and 8,185.81

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Solution

The fourth proportional to 13,376.29, 20,054.67 and 8,185.81 is: 12,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.29 : 20,054.67 = 8,185.81 : x
  2. Step 2: Convert to fraction form
    13,376.29/20,054.67 = 8,185.81/x
  3. Step 3: Cross multiply
    13,376.29x = 20,054.67 × 8,185.81
  4. Step 4: Simplify right side
    13,376.29x = 164,163,718.23
  5. Step 5: Solve for x
    x = 164,163,718.23/13,376.29
  6. Step 6: Final answer
    x = 12,272.74

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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.