Home / 18,806.09-25,893.20-14,315.45

Finding the Fourth Proportional to 18,806.09, 25,893.20 and 14,315.45

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Solution

The fourth proportional to 18,806.09, 25,893.20 and 14,315.45 is: 19,710.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.09 : 25,893.20 = 14,315.45 : x
  2. Step 2: Convert to fraction form
    18,806.09/25,893.20 = 14,315.45/x
  3. Step 3: Cross multiply
    18,806.09x = 25,893.20 × 14,315.45
  4. Step 4: Simplify right side
    18,806.09x = 370,672,680.47
  5. Step 5: Solve for x
    x = 370,672,680.47/18,806.09
  6. Step 6: Final answer
    x = 19,710.25

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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.