Home / 12,135.36-18,200.32-4,737.28

Finding the Fourth Proportional to 12,135.36, 18,200.32 and 4,737.28

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Solution

The fourth proportional to 12,135.36, 18,200.32 and 4,737.28 is: 7,104.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.36 : 18,200.32 = 4,737.28 : x
  2. Step 2: Convert to fraction form
    12,135.36/18,200.32 = 4,737.28/x
  3. Step 3: Cross multiply
    12,135.36x = 18,200.32 × 4,737.28
  4. Step 4: Simplify right side
    12,135.36x = 86,220,011.93
  5. Step 5: Solve for x
    x = 86,220,011.93/12,135.36
  6. Step 6: Final answer
    x = 7,104.86

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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.