Home / 18,689.08-25,789.80-10,730.56

Finding the Fourth Proportional to 18,689.08, 25,789.80 and 10,730.56

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Solution

The fourth proportional to 18,689.08, 25,789.80 and 10,730.56 is: 14,807.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.08 : 25,789.80 = 10,730.56 : x
  2. Step 2: Convert to fraction form
    18,689.08/25,789.80 = 10,730.56/x
  3. Step 3: Cross multiply
    18,689.08x = 25,789.80 × 10,730.56
  4. Step 4: Simplify right side
    18,689.08x = 276,738,996.29
  5. Step 5: Solve for x
    x = 276,738,996.29/18,689.08
  6. Step 6: Final answer
    x = 14,807.52

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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.