Home / 19,274.31-28,891.62-12,259.53

Finding the Fourth Proportional to 19,274.31, 28,891.62 and 12,259.53

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Solution

The fourth proportional to 19,274.31, 28,891.62 and 12,259.53 is: 18,376.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,274.31 : 28,891.62 = 12,259.53 : x
  2. Step 2: Convert to fraction form
    19,274.31/28,891.62 = 12,259.53/x
  3. Step 3: Cross multiply
    19,274.31x = 28,891.62 × 12,259.53
  4. Step 4: Simplify right side
    19,274.31x = 354,197,682.14
  5. Step 5: Solve for x
    x = 354,197,682.14/19,274.31
  6. Step 6: Final answer
    x = 18,376.67

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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.