Home / 12,954.06-19,430.64-4,188.75

Finding the Fourth Proportional to 12,954.06, 19,430.64 and 4,188.75

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Solution

The fourth proportional to 12,954.06, 19,430.64 and 4,188.75 is: 6,282.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954.06 : 19,430.64 = 4,188.75 : x
  2. Step 2: Convert to fraction form
    12,954.06/19,430.64 = 4,188.75/x
  3. Step 3: Cross multiply
    12,954.06x = 19,430.64 × 4,188.75
  4. Step 4: Simplify right side
    12,954.06x = 81,390,093.30
  5. Step 5: Solve for x
    x = 81,390,093.30/12,954.06
  6. Step 6: Final answer
    x = 6,282.98

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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.