Home / 13,923.49-19,212.64-7,955.55

Finding the Fourth Proportional to 13,923.49, 19,212.64 and 7,955.55

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Solution

The fourth proportional to 13,923.49, 19,212.64 and 7,955.55 is: 10,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.49 : 19,212.64 = 7,955.55 : x
  2. Step 2: Convert to fraction form
    13,923.49/19,212.64 = 7,955.55/x
  3. Step 3: Cross multiply
    13,923.49x = 19,212.64 × 7,955.55
  4. Step 4: Simplify right side
    13,923.49x = 152,847,099.95
  5. Step 5: Solve for x
    x = 152,847,099.95/13,923.49
  6. Step 6: Final answer
    x = 10,977.64

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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.