Home / 12,285.24-18,436.38-4,889.01

Finding the Fourth Proportional to 12,285.24, 18,436.38 and 4,889.01

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Solution

The fourth proportional to 12,285.24, 18,436.38 and 4,889.01 is: 7,336.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.24 : 18,436.38 = 4,889.01 : x
  2. Step 2: Convert to fraction form
    12,285.24/18,436.38 = 4,889.01/x
  3. Step 3: Cross multiply
    12,285.24x = 18,436.38 × 4,889.01
  4. Step 4: Simplify right side
    12,285.24x = 90,135,646.18
  5. Step 5: Solve for x
    x = 90,135,646.18/12,285.24
  6. Step 6: Final answer
    x = 7,336.91

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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.