Home / 14,119.89-21,186.80-9,986.46

Finding the Fourth Proportional to 14,119.89, 21,186.80 and 9,986.46

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Solution

The fourth proportional to 14,119.89, 21,186.80 and 9,986.46 is: 14,984.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.89 : 21,186.80 = 9,986.46 : x
  2. Step 2: Convert to fraction form
    14,119.89/21,186.80 = 9,986.46/x
  3. Step 3: Cross multiply
    14,119.89x = 21,186.80 × 9,986.46
  4. Step 4: Simplify right side
    14,119.89x = 211,581,080.80
  5. Step 5: Solve for x
    x = 211,581,080.80/14,119.89
  6. Step 6: Final answer
    x = 14,984.61

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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.