Home / 18,644.66-25,730.28-10,688.38

Finding the Fourth Proportional to 18,644.66, 25,730.28 and 10,688.38

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Solution

The fourth proportional to 18,644.66, 25,730.28 and 10,688.38 is: 14,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.66 : 25,730.28 = 10,688.38 : x
  2. Step 2: Convert to fraction form
    18,644.66/25,730.28 = 10,688.38/x
  3. Step 3: Cross multiply
    18,644.66x = 25,730.28 × 10,688.38
  4. Step 4: Simplify right side
    18,644.66x = 275,015,010.15
  5. Step 5: Solve for x
    x = 275,015,010.15/18,644.66
  6. Step 6: Final answer
    x = 14,750.34

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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.