Home / 14,785.08-20,367.69-12,653.77

Finding the Fourth Proportional to 14,785.08, 20,367.69 and 12,653.77

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Solution

The fourth proportional to 14,785.08, 20,367.69 and 12,653.77 is: 17,431.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.08 : 20,367.69 = 12,653.77 : x
  2. Step 2: Convert to fraction form
    14,785.08/20,367.69 = 12,653.77/x
  3. Step 3: Cross multiply
    14,785.08x = 20,367.69 × 12,653.77
  4. Step 4: Simplify right side
    14,785.08x = 257,728,064.69
  5. Step 5: Solve for x
    x = 257,728,064.69/14,785.08
  6. Step 6: Final answer
    x = 17,431.63

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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.