Home / 12,964.74-19,430.70-8,282.94

Finding the Fourth Proportional to 12,964.74, 19,430.70 and 8,282.94

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Solution

The fourth proportional to 12,964.74, 19,430.70 and 8,282.94 is: 12,413.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,964.74 : 19,430.70 = 8,282.94 : x
  2. Step 2: Convert to fraction form
    12,964.74/19,430.70 = 8,282.94/x
  3. Step 3: Cross multiply
    12,964.74x = 19,430.70 × 8,282.94
  4. Step 4: Simplify right side
    12,964.74x = 160,943,225.10
  5. Step 5: Solve for x
    x = 160,943,225.10/12,964.74
  6. Step 6: Final answer
    x = 12,413.92

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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.