Home / 18,826.89-25,979.25-10,869.45

Finding the Fourth Proportional to 18,826.89, 25,979.25 and 10,869.45

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Solution

The fourth proportional to 18,826.89, 25,979.25 and 10,869.45 is: 14,998.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.89 : 25,979.25 = 10,869.45 : x
  2. Step 2: Convert to fraction form
    18,826.89/25,979.25 = 10,869.45/x
  3. Step 3: Cross multiply
    18,826.89x = 25,979.25 × 10,869.45
  4. Step 4: Simplify right side
    18,826.89x = 282,380,158.91
  5. Step 5: Solve for x
    x = 282,380,158.91/18,826.89
  6. Step 6: Final answer
    x = 14,998.77

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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.