Home / 12,913.05-19,371.86-6,671.33

Finding the Fourth Proportional to 12,913.05, 19,371.86 and 6,671.33

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Solution

The fourth proportional to 12,913.05, 19,371.86 and 6,671.33 is: 10,008.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913.05 : 19,371.86 = 6,671.33 : x
  2. Step 2: Convert to fraction form
    12,913.05/19,371.86 = 6,671.33/x
  3. Step 3: Cross multiply
    12,913.05x = 19,371.86 × 6,671.33
  4. Step 4: Simplify right side
    12,913.05x = 129,236,038.22
  5. Step 5: Solve for x
    x = 129,236,038.22/12,913.05
  6. Step 6: Final answer
    x = 10,008.17

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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.