Home / 12,926.50-19,389.75-4,162.30

Finding the Fourth Proportional to 12,926.50, 19,389.75 and 4,162.30

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Solution

The fourth proportional to 12,926.50, 19,389.75 and 4,162.30 is: 6,243.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.50 : 19,389.75 = 4,162.30 : x
  2. Step 2: Convert to fraction form
    12,926.50/19,389.75 = 4,162.30/x
  3. Step 3: Cross multiply
    12,926.50x = 19,389.75 × 4,162.30
  4. Step 4: Simplify right side
    12,926.50x = 80,705,956.43
  5. Step 5: Solve for x
    x = 80,705,956.43/12,926.50
  6. Step 6: Final answer
    x = 6,243.45

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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.