Home / 14,623.49-20,180.35-7,909.12

Finding the Fourth Proportional to 14,623.49, 20,180.35 and 7,909.12

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Solution

The fourth proportional to 14,623.49, 20,180.35 and 7,909.12 is: 10,914.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,623.49 : 20,180.35 = 7,909.12 : x
  2. Step 2: Convert to fraction form
    14,623.49/20,180.35 = 7,909.12/x
  3. Step 3: Cross multiply
    14,623.49x = 20,180.35 × 7,909.12
  4. Step 4: Simplify right side
    14,623.49x = 159,608,809.79
  5. Step 5: Solve for x
    x = 159,608,809.79/14,623.49
  6. Step 6: Final answer
    x = 10,914.55

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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.