Home / 15,806.95-21,786.56-12,263.47

Finding the Fourth Proportional to 15,806.95, 21,786.56 and 12,263.47

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Solution

The fourth proportional to 15,806.95, 21,786.56 and 12,263.47 is: 16,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.95 : 21,786.56 = 12,263.47 : x
  2. Step 2: Convert to fraction form
    15,806.95/21,786.56 = 12,263.47/x
  3. Step 3: Cross multiply
    15,806.95x = 21,786.56 × 12,263.47
  4. Step 4: Simplify right side
    15,806.95x = 267,178,824.96
  5. Step 5: Solve for x
    x = 267,178,824.96/15,806.95
  6. Step 6: Final answer
    x = 16,902.62

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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.