Home / 13,186.64-19,782.36-6,617.36

Finding the Fourth Proportional to 13,186.64, 19,782.36 and 6,617.36

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Solution

The fourth proportional to 13,186.64, 19,782.36 and 6,617.36 is: 9,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.64 : 19,782.36 = 6,617.36 : x
  2. Step 2: Convert to fraction form
    13,186.64/19,782.36 = 6,617.36/x
  3. Step 3: Cross multiply
    13,186.64x = 19,782.36 × 6,617.36
  4. Step 4: Simplify right side
    13,186.64x = 130,906,997.77
  5. Step 5: Solve for x
    x = 130,906,997.77/13,186.64
  6. Step 6: Final answer
    x = 9,927.24

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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.