Home / 12,292.80-18,440.36-4,895.56

Finding the Fourth Proportional to 12,292.80, 18,440.36 and 4,895.56

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Solution

The fourth proportional to 12,292.80, 18,440.36 and 4,895.56 is: 7,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,292.80 : 18,440.36 = 4,895.56 : x
  2. Step 2: Convert to fraction form
    12,292.80/18,440.36 = 4,895.56/x
  3. Step 3: Cross multiply
    12,292.80x = 18,440.36 × 4,895.56
  4. Step 4: Simplify right side
    12,292.80x = 90,275,888.80
  5. Step 5: Solve for x
    x = 90,275,888.80/12,292.80
  6. Step 6: Final answer
    x = 7,343.80

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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.