Home / 8,180.80-11,289.16-4,643.93

Finding the Fourth Proportional to 8,180.80, 11,289.16 and 4,643.93

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Solution

The fourth proportional to 8,180.80, 11,289.16 and 4,643.93 is: 6,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.80 : 11,289.16 = 4,643.93 : x
  2. Step 2: Convert to fraction form
    8,180.80/11,289.16 = 4,643.93/x
  3. Step 3: Cross multiply
    8,180.80x = 11,289.16 × 4,643.93
  4. Step 4: Simplify right side
    8,180.80x = 52,426,068.80
  5. Step 5: Solve for x
    x = 52,426,068.80/8,180.80
  6. Step 6: Final answer
    x = 6,408.43

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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.