Home / 13,873.09-19,139.47-8,836.41

Finding the Fourth Proportional to 13,873.09, 19,139.47 and 8,836.41

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Solution

The fourth proportional to 13,873.09, 19,139.47 and 8,836.41 is: 12,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.09 : 19,139.47 = 8,836.41 : x
  2. Step 2: Convert to fraction form
    13,873.09/19,139.47 = 8,836.41/x
  3. Step 3: Cross multiply
    13,873.09x = 19,139.47 × 8,836.41
  4. Step 4: Simplify right side
    13,873.09x = 169,124,204.10
  5. Step 5: Solve for x
    x = 169,124,204.10/13,873.09
  6. Step 6: Final answer
    x = 12,190.81

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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.