Home / 14,518.73-21,778.10-5,285.45

Finding the Fourth Proportional to 14,518.73, 21,778.10 and 5,285.45

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Solution

The fourth proportional to 14,518.73, 21,778.10 and 5,285.45 is: 7,928.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.73 : 21,778.10 = 5,285.45 : x
  2. Step 2: Convert to fraction form
    14,518.73/21,778.10 = 5,285.45/x
  3. Step 3: Cross multiply
    14,518.73x = 21,778.10 × 5,285.45
  4. Step 4: Simplify right side
    14,518.73x = 115,107,058.65
  5. Step 5: Solve for x
    x = 115,107,058.65/14,518.73
  6. Step 6: Final answer
    x = 7,928.18

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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.