Home / 11,899.63-16,421.47-6,863.77

Finding the Fourth Proportional to 11,899.63, 16,421.47 and 6,863.77

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Solution

The fourth proportional to 11,899.63, 16,421.47 and 6,863.77 is: 9,471.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,899.63 : 16,421.47 = 6,863.77 : x
  2. Step 2: Convert to fraction form
    11,899.63/16,421.47 = 6,863.77/x
  3. Step 3: Cross multiply
    11,899.63x = 16,421.47 × 6,863.77
  4. Step 4: Simplify right side
    11,899.63x = 112,713,158.82
  5. Step 5: Solve for x
    x = 112,713,158.82/11,899.63
  6. Step 6: Final answer
    x = 9,471.99

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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.