Home / 12,828.30-19,254.60-7,907.55

Finding the Fourth Proportional to 12,828.30, 19,254.60 and 7,907.55

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Solution

The fourth proportional to 12,828.30, 19,254.60 and 7,907.55 is: 11,868.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.30 : 19,254.60 = 7,907.55 : x
  2. Step 2: Convert to fraction form
    12,828.30/19,254.60 = 7,907.55/x
  3. Step 3: Cross multiply
    12,828.30x = 19,254.60 × 7,907.55
  4. Step 4: Simplify right side
    12,828.30x = 152,256,712.23
  5. Step 5: Solve for x
    x = 152,256,712.23/12,828.30
  6. Step 6: Final answer
    x = 11,868.81

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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.