Home / 14,269.48-19,693.74-7,981.72

Finding the Fourth Proportional to 14,269.48, 19,693.74 and 7,981.72

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Solution

The fourth proportional to 14,269.48, 19,693.74 and 7,981.72 is: 11,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.48 : 19,693.74 = 7,981.72 : x
  2. Step 2: Convert to fraction form
    14,269.48/19,693.74 = 7,981.72/x
  3. Step 3: Cross multiply
    14,269.48x = 19,693.74 × 7,981.72
  4. Step 4: Simplify right side
    14,269.48x = 157,189,918.43
  5. Step 5: Solve for x
    x = 157,189,918.43/14,269.48
  6. Step 6: Final answer
    x = 11,015.81

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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.