Home / 13,830.94-19,086.70-7,862.46

Finding the Fourth Proportional to 13,830.94, 19,086.70 and 7,862.46

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Solution

The fourth proportional to 13,830.94, 19,086.70 and 7,862.46 is: 10,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.94 : 19,086.70 = 7,862.46 : x
  2. Step 2: Convert to fraction form
    13,830.94/19,086.70 = 7,862.46/x
  3. Step 3: Cross multiply
    13,830.94x = 19,086.70 × 7,862.46
  4. Step 4: Simplify right side
    13,830.94x = 150,068,415.28
  5. Step 5: Solve for x
    x = 150,068,415.28/13,830.94
  6. Step 6: Final answer
    x = 10,850.20

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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.