Home / 13,885.23-19,161.56-7,511.82

Finding the Fourth Proportional to 13,885.23, 19,161.56 and 7,511.82

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Solution

The fourth proportional to 13,885.23, 19,161.56 and 7,511.82 is: 10,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885.23 : 19,161.56 = 7,511.82 : x
  2. Step 2: Convert to fraction form
    13,885.23/19,161.56 = 7,511.82/x
  3. Step 3: Cross multiply
    13,885.23x = 19,161.56 × 7,511.82
  4. Step 4: Simplify right side
    13,885.23x = 143,938,189.64
  5. Step 5: Solve for x
    x = 143,938,189.64/13,885.23
  6. Step 6: Final answer
    x = 10,366.28

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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.