Home / 12,533.78-18,863.42-9,429.86

Finding the Fourth Proportional to 12,533.78, 18,863.42 and 9,429.86

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Solution

The fourth proportional to 12,533.78, 18,863.42 and 9,429.86 is: 14,192.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,533.78 : 18,863.42 = 9,429.86 : x
  2. Step 2: Convert to fraction form
    12,533.78/18,863.42 = 9,429.86/x
  3. Step 3: Cross multiply
    12,533.78x = 18,863.42 × 9,429.86
  4. Step 4: Simplify right side
    12,533.78x = 177,879,409.72
  5. Step 5: Solve for x
    x = 177,879,409.72/12,533.78
  6. Step 6: Final answer
    x = 14,192.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.