Home / 18,664.32-25,756.76-10,280.82

Finding the Fourth Proportional to 18,664.32, 25,756.76 and 10,280.82

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Solution

The fourth proportional to 18,664.32, 25,756.76 and 10,280.82 is: 14,187.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.32 : 25,756.76 = 10,280.82 : x
  2. Step 2: Convert to fraction form
    18,664.32/25,756.76 = 10,280.82/x
  3. Step 3: Cross multiply
    18,664.32x = 25,756.76 × 10,280.82
  4. Step 4: Simplify right side
    18,664.32x = 264,800,639.05
  5. Step 5: Solve for x
    x = 264,800,639.05/18,664.32
  6. Step 6: Final answer
    x = 14,187.53

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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.