Home / 18,664.91-25,756.40-10,281.41

Finding the Fourth Proportional to 18,664.91, 25,756.40 and 10,281.41

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Solution

The fourth proportional to 18,664.91, 25,756.40 and 10,281.41 is: 14,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.91 : 25,756.40 = 10,281.41 : x
  2. Step 2: Convert to fraction form
    18,664.91/25,756.40 = 10,281.41/x
  3. Step 3: Cross multiply
    18,664.91x = 25,756.40 × 10,281.41
  4. Step 4: Simplify right side
    18,664.91x = 264,811,928.33
  5. Step 5: Solve for x
    x = 264,811,928.33/18,664.91
  6. Step 6: Final answer
    x = 14,187.69

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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.