Home / 18,688.86-25,789.46-10,725.48

Finding the Fourth Proportional to 18,688.86, 25,789.46 and 10,725.48

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Solution

The fourth proportional to 18,688.86, 25,789.46 and 10,725.48 is: 14,800.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.86 : 25,789.46 = 10,725.48 : x
  2. Step 2: Convert to fraction form
    18,688.86/25,789.46 = 10,725.48/x
  3. Step 3: Cross multiply
    18,688.86x = 25,789.46 × 10,725.48
  4. Step 4: Simplify right side
    18,688.86x = 276,604,283.81
  5. Step 5: Solve for x
    x = 276,604,283.81/18,688.86
  6. Step 6: Final answer
    x = 14,800.49

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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.