Home / 13,867.84-19,137.54-7,899.76

Finding the Fourth Proportional to 13,867.84, 19,137.54 and 7,899.76

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Solution

The fourth proportional to 13,867.84, 19,137.54 and 7,899.76 is: 10,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.84 : 19,137.54 = 7,899.76 : x
  2. Step 2: Convert to fraction form
    13,867.84/19,137.54 = 7,899.76/x
  3. Step 3: Cross multiply
    13,867.84x = 19,137.54 × 7,899.76
  4. Step 4: Simplify right side
    13,867.84x = 151,181,972.99
  5. Step 5: Solve for x
    x = 151,181,972.99/13,867.84
  6. Step 6: Final answer
    x = 10,901.62

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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.