Home / 13,885.14-19,161.41-7,511.71

Finding the Fourth Proportional to 13,885.14, 19,161.41 and 7,511.71

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Solution

The fourth proportional to 13,885.14, 19,161.41 and 7,511.71 is: 10,366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.14 : 19,161.41 = 7,511.71 : x
  2. Step 2: Convert to fraction form
    13,885.14/19,161.41 = 7,511.71/x
  3. Step 3: Cross multiply
    13,885.14x = 19,161.41 × 7,511.71
  4. Step 4: Simplify right side
    13,885.14x = 143,934,897.82
  5. Step 5: Solve for x
    x = 143,934,897.82/13,885.14
  6. Step 6: Final answer
    x = 10,366.11

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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.