Home / 18,818.73-25,970.22-10,861.38

Finding the Fourth Proportional to 18,818.73, 25,970.22 and 10,861.38

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Solution

The fourth proportional to 18,818.73, 25,970.22 and 10,861.38 is: 14,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.73 : 25,970.22 = 10,861.38 : x
  2. Step 2: Convert to fraction form
    18,818.73/25,970.22 = 10,861.38/x
  3. Step 3: Cross multiply
    18,818.73x = 25,970.22 × 10,861.38
  4. Step 4: Simplify right side
    18,818.73x = 282,072,428.10
  5. Step 5: Solve for x
    x = 282,072,428.10/18,818.73
  6. Step 6: Final answer
    x = 14,988.92

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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.