Home / 13,880.03-19,154.43-7,911.95

Finding the Fourth Proportional to 13,880.03, 19,154.43 and 7,911.95

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Solution

The fourth proportional to 13,880.03, 19,154.43 and 7,911.95 is: 10,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.03 : 19,154.43 = 7,911.95 : x
  2. Step 2: Convert to fraction form
    13,880.03/19,154.43 = 7,911.95/x
  3. Step 3: Cross multiply
    13,880.03x = 19,154.43 × 7,911.95
  4. Step 4: Simplify right side
    13,880.03x = 151,548,796.67
  5. Step 5: Solve for x
    x = 151,548,796.67/13,880.03
  6. Step 6: Final answer
    x = 10,918.48

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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.