Home / 14,986.80-20,674.44-9,686.16

Finding the Fourth Proportional to 14,986.80, 20,674.44 and 9,686.16

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Solution

The fourth proportional to 14,986.80, 20,674.44 and 9,686.16 is: 13,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.80 : 20,674.44 = 9,686.16 : x
  2. Step 2: Convert to fraction form
    14,986.80/20,674.44 = 9,686.16/x
  3. Step 3: Cross multiply
    14,986.80x = 20,674.44 × 9,686.16
  4. Step 4: Simplify right side
    14,986.80x = 200,255,933.75
  5. Step 5: Solve for x
    x = 200,255,933.75/14,986.80
  6. Step 6: Final answer
    x = 13,362.15

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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.