Home / 14,280.82-19,705.19-8,971.88

Finding the Fourth Proportional to 14,280.82, 19,705.19 and 8,971.88

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Solution

The fourth proportional to 14,280.82, 19,705.19 and 8,971.88 is: 12,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.82 : 19,705.19 = 8,971.88 : x
  2. Step 2: Convert to fraction form
    14,280.82/19,705.19 = 8,971.88/x
  3. Step 3: Cross multiply
    14,280.82x = 19,705.19 × 8,971.88
  4. Step 4: Simplify right side
    14,280.82x = 176,792,456.67
  5. Step 5: Solve for x
    x = 176,792,456.67/14,280.82
  6. Step 6: Final answer
    x = 12,379.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.