Home / 11,188.89-16,818.21-7,055.46

Finding the Fourth Proportional to 11,188.89, 16,818.21 and 7,055.46

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Solution

The fourth proportional to 11,188.89, 16,818.21 and 7,055.46 is: 10,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.89 : 16,818.21 = 7,055.46 : x
  2. Step 2: Convert to fraction form
    11,188.89/16,818.21 = 7,055.46/x
  3. Step 3: Cross multiply
    11,188.89x = 16,818.21 × 7,055.46
  4. Step 4: Simplify right side
    11,188.89x = 118,660,207.93
  5. Step 5: Solve for x
    x = 118,660,207.93/11,188.89
  6. Step 6: Final answer
    x = 10,605.18

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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.