Home / 12,900.08-19,347.24-5,406.32

Finding the Fourth Proportional to 12,900.08, 19,347.24 and 5,406.32

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Solution

The fourth proportional to 12,900.08, 19,347.24 and 5,406.32 is: 8,108.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.08 : 19,347.24 = 5,406.32 : x
  2. Step 2: Convert to fraction form
    12,900.08/19,347.24 = 5,406.32/x
  3. Step 3: Cross multiply
    12,900.08x = 19,347.24 × 5,406.32
  4. Step 4: Simplify right side
    12,900.08x = 104,597,370.56
  5. Step 5: Solve for x
    x = 104,597,370.56/12,900.08
  6. Step 6: Final answer
    x = 8,108.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.