Home / 14,378.09-19,840.69-8,089.25

Finding the Fourth Proportional to 14,378.09, 19,840.69 and 8,089.25

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Solution

The fourth proportional to 14,378.09, 19,840.69 and 8,089.25 is: 11,162.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.09 : 19,840.69 = 8,089.25 : x
  2. Step 2: Convert to fraction form
    14,378.09/19,840.69 = 8,089.25/x
  3. Step 3: Cross multiply
    14,378.09x = 19,840.69 × 8,089.25
  4. Step 4: Simplify right side
    14,378.09x = 160,496,301.58
  5. Step 5: Solve for x
    x = 160,496,301.58/14,378.09
  6. Step 6: Final answer
    x = 11,162.56

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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.