Home / 13,788.54-19,025.55-7,818.84

Finding the Fourth Proportional to 13,788.54, 19,025.55 and 7,818.84

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Solution

The fourth proportional to 13,788.54, 19,025.55 and 7,818.84 is: 10,788.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.54 : 19,025.55 = 7,818.84 : x
  2. Step 2: Convert to fraction form
    13,788.54/19,025.55 = 7,818.84/x
  3. Step 3: Cross multiply
    13,788.54x = 19,025.55 × 7,818.84
  4. Step 4: Simplify right side
    13,788.54x = 148,757,731.36
  5. Step 5: Solve for x
    x = 148,757,731.36/13,788.54
  6. Step 6: Final answer
    x = 10,788.50

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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.