Home / 12,810.26-19,215.30-4,045.80

Finding the Fourth Proportional to 12,810.26, 19,215.30 and 4,045.80

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Solution

The fourth proportional to 12,810.26, 19,215.30 and 4,045.80 is: 6,068.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.26 : 19,215.30 = 4,045.80 : x
  2. Step 2: Convert to fraction form
    12,810.26/19,215.30 = 4,045.80/x
  3. Step 3: Cross multiply
    12,810.26x = 19,215.30 × 4,045.80
  4. Step 4: Simplify right side
    12,810.26x = 77,741,260.74
  5. Step 5: Solve for x
    x = 77,741,260.74/12,810.26
  6. Step 6: Final answer
    x = 6,068.67

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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.