Home / 12,828.54-19,242.80-9,340.74

Finding the Fourth Proportional to 12,828.54, 19,242.80 and 9,340.74

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Solution

The fourth proportional to 12,828.54, 19,242.80 and 9,340.74 is: 14,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.54 : 19,242.80 = 9,340.74 : x
  2. Step 2: Convert to fraction form
    12,828.54/19,242.80 = 9,340.74/x
  3. Step 3: Cross multiply
    12,828.54x = 19,242.80 × 9,340.74
  4. Step 4: Simplify right side
    12,828.54x = 179,741,907.84
  5. Step 5: Solve for x
    x = 179,741,907.84/12,828.54
  6. Step 6: Final answer
    x = 14,011.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.