Home / 14,016.08-19,342.34-7,728.68

Finding the Fourth Proportional to 14,016.08, 19,342.34 and 7,728.68

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Solution

The fourth proportional to 14,016.08, 19,342.34 and 7,728.68 is: 10,665.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,016.08 : 19,342.34 = 7,728.68 : x
  2. Step 2: Convert to fraction form
    14,016.08/19,342.34 = 7,728.68/x
  3. Step 3: Cross multiply
    14,016.08x = 19,342.34 × 7,728.68
  4. Step 4: Simplify right side
    14,016.08x = 149,490,717.67
  5. Step 5: Solve for x
    x = 149,490,717.67/14,016.08
  6. Step 6: Final answer
    x = 10,665.66

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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.