Home / 18,455.81-25,470.39-10,500.60

Finding the Fourth Proportional to 18,455.81, 25,470.39 and 10,500.60

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Solution

The fourth proportional to 18,455.81, 25,470.39 and 10,500.60 is: 14,491.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.81 : 25,470.39 = 10,500.60 : x
  2. Step 2: Convert to fraction form
    18,455.81/25,470.39 = 10,500.60/x
  3. Step 3: Cross multiply
    18,455.81x = 25,470.39 × 10,500.60
  4. Step 4: Simplify right side
    18,455.81x = 267,454,377.23
  5. Step 5: Solve for x
    x = 267,454,377.23/18,455.81
  6. Step 6: Final answer
    x = 14,491.61

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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.