Home / 14,723.42-20,304.38-9,409

Finding the Fourth Proportional to 14,723.42, 20,304.38 and 9,409

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Solution

The fourth proportional to 14,723.42, 20,304.38 and 9,409 is: 12,975.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,723.42 : 20,304.38 = 9,409 : x
  2. Step 2: Convert to fraction form
    14,723.42/20,304.38 = 9,409/x
  3. Step 3: Cross multiply
    14,723.42x = 20,304.38 × 9,409
  4. Step 4: Simplify right side
    14,723.42x = 191,043,911.42
  5. Step 5: Solve for x
    x = 191,043,911.42/14,723.42
  6. Step 6: Final answer
    x = 12,975.51

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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.