Home / 13,880.70-19,156.50-7,914.24

Finding the Fourth Proportional to 13,880.70, 19,156.50 and 7,914.24

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Solution

The fourth proportional to 13,880.70, 19,156.50 and 7,914.24 is: 10,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.70 : 19,156.50 = 7,914.24 : x
  2. Step 2: Convert to fraction form
    13,880.70/19,156.50 = 7,914.24/x
  3. Step 3: Cross multiply
    13,880.70x = 19,156.50 × 7,914.24
  4. Step 4: Simplify right side
    13,880.70x = 151,609,138.56
  5. Step 5: Solve for x
    x = 151,609,138.56/13,880.70
  6. Step 6: Final answer
    x = 10,922.30

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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.