Home / 12,745.32-19,130.12-5,347.79

Finding the Fourth Proportional to 12,745.32, 19,130.12 and 5,347.79

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Solution

The fourth proportional to 12,745.32, 19,130.12 and 5,347.79 is: 8,026.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.32 : 19,130.12 = 5,347.79 : x
  2. Step 2: Convert to fraction form
    12,745.32/19,130.12 = 5,347.79/x
  3. Step 3: Cross multiply
    12,745.32x = 19,130.12 × 5,347.79
  4. Step 4: Simplify right side
    12,745.32x = 102,303,742.05
  5. Step 5: Solve for x
    x = 102,303,742.05/12,745.32
  6. Step 6: Final answer
    x = 8,026.77

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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.