Home / 13,384.96-18,471.20-7,416.66

Finding the Fourth Proportional to 13,384.96, 18,471.20 and 7,416.66

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Solution

The fourth proportional to 13,384.96, 18,471.20 and 7,416.66 is: 10,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.96 : 18,471.20 = 7,416.66 : x
  2. Step 2: Convert to fraction form
    13,384.96/18,471.20 = 7,416.66/x
  3. Step 3: Cross multiply
    13,384.96x = 18,471.20 × 7,416.66
  4. Step 4: Simplify right side
    13,384.96x = 136,994,610.19
  5. Step 5: Solve for x
    x = 136,994,610.19/13,384.96
  6. Step 6: Final answer
    x = 10,234.97

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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.