Home / 18,766.50-25,898.97-10,808.55

Finding the Fourth Proportional to 18,766.50, 25,898.97 and 10,808.55

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Solution

The fourth proportional to 18,766.50, 25,898.97 and 10,808.55 is: 14,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.50 : 25,898.97 = 10,808.55 : x
  2. Step 2: Convert to fraction form
    18,766.50/25,898.97 = 10,808.55/x
  3. Step 3: Cross multiply
    18,766.50x = 25,898.97 × 10,808.55
  4. Step 4: Simplify right side
    18,766.50x = 279,930,312.19
  5. Step 5: Solve for x
    x = 279,930,312.19/18,766.50
  6. Step 6: Final answer
    x = 14,916.49

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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.