Home / 18,688.14-25,789.65-10,730.88

Finding the Fourth Proportional to 18,688.14, 25,789.65 and 10,730.88

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Solution

The fourth proportional to 18,688.14, 25,789.65 and 10,730.88 is: 14,808.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.14 : 25,789.65 = 10,730.88 : x
  2. Step 2: Convert to fraction form
    18,688.14/25,789.65 = 10,730.88/x
  3. Step 3: Cross multiply
    18,688.14x = 25,789.65 × 10,730.88
  4. Step 4: Simplify right side
    18,688.14x = 276,745,639.39
  5. Step 5: Solve for x
    x = 276,745,639.39/18,688.14
  6. Step 6: Final answer
    x = 14,808.62

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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.