Home / 18,739.32-25,858.06-10,355.32

Finding the Fourth Proportional to 18,739.32, 25,858.06 and 10,355.32

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Solution

The fourth proportional to 18,739.32, 25,858.06 and 10,355.32 is: 14,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.32 : 25,858.06 = 10,355.32 : x
  2. Step 2: Convert to fraction form
    18,739.32/25,858.06 = 10,355.32/x
  3. Step 3: Cross multiply
    18,739.32x = 25,858.06 × 10,355.32
  4. Step 4: Simplify right side
    18,739.32x = 267,768,485.88
  5. Step 5: Solve for x
    x = 267,768,485.88/18,739.32
  6. Step 6: Final answer
    x = 14,289.12

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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.