Home / 12,806.18-19,211.32-5,410.71

Finding the Fourth Proportional to 12,806.18, 19,211.32 and 5,410.71

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Solution

The fourth proportional to 12,806.18, 19,211.32 and 5,410.71 is: 8,116.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.18 : 19,211.32 = 5,410.71 : x
  2. Step 2: Convert to fraction form
    12,806.18/19,211.32 = 5,410.71/x
  3. Step 3: Cross multiply
    12,806.18x = 19,211.32 × 5,410.71
  4. Step 4: Simplify right side
    12,806.18x = 103,946,881.24
  5. Step 5: Solve for x
    x = 103,946,881.24/12,806.18
  6. Step 6: Final answer
    x = 8,116.93

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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.