Home / 14,670.06-21,991.68-7,641.78

Finding the Fourth Proportional to 14,670.06, 21,991.68 and 7,641.78

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Solution

The fourth proportional to 14,670.06, 21,991.68 and 7,641.78 is: 11,455.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,670.06 : 21,991.68 = 7,641.78 : x
  2. Step 2: Convert to fraction form
    14,670.06/21,991.68 = 7,641.78/x
  3. Step 3: Cross multiply
    14,670.06x = 21,991.68 × 7,641.78
  4. Step 4: Simplify right side
    14,670.06x = 168,055,580.39
  5. Step 5: Solve for x
    x = 168,055,580.39/14,670.06
  6. Step 6: Final answer
    x = 11,455.68

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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.