Home / 11,745.63-16,209.75-6,440.45

Finding the Fourth Proportional to 11,745.63, 16,209.75 and 6,440.45

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Solution

The fourth proportional to 11,745.63, 16,209.75 and 6,440.45 is: 8,888.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.63 : 16,209.75 = 6,440.45 : x
  2. Step 2: Convert to fraction form
    11,745.63/16,209.75 = 6,440.45/x
  3. Step 3: Cross multiply
    11,745.63x = 16,209.75 × 6,440.45
  4. Step 4: Simplify right side
    11,745.63x = 104,398,051.72
  5. Step 5: Solve for x
    x = 104,398,051.72/11,745.63
  6. Step 6: Final answer
    x = 8,888.24

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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.