Home / 10,186.12-14,065.20-6,415.36

Finding the Fourth Proportional to 10,186.12, 14,065.20 and 6,415.36

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Solution

The fourth proportional to 10,186.12, 14,065.20 and 6,415.36 is: 8,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,186.12 : 14,065.20 = 6,415.36 : x
  2. Step 2: Convert to fraction form
    10,186.12/14,065.20 = 6,415.36/x
  3. Step 3: Cross multiply
    10,186.12x = 14,065.20 × 6,415.36
  4. Step 4: Simplify right side
    10,186.12x = 90,233,321.47
  5. Step 5: Solve for x
    x = 90,233,321.47/10,186.12
  6. Step 6: Final answer
    x = 8,858.46

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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.