Home / 11,133.36-15,360.48-6,416.64

Finding the Fourth Proportional to 11,133.36, 15,360.48 and 6,416.64

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Solution

The fourth proportional to 11,133.36, 15,360.48 and 6,416.64 is: 8,852.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.36 : 15,360.48 = 6,416.64 : x
  2. Step 2: Convert to fraction form
    11,133.36/15,360.48 = 6,416.64/x
  3. Step 3: Cross multiply
    11,133.36x = 15,360.48 × 6,416.64
  4. Step 4: Simplify right side
    11,133.36x = 98,562,670.39
  5. Step 5: Solve for x
    x = 98,562,670.39/11,133.36
  6. Step 6: Final answer
    x = 8,852.91

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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.