Home / 14,709.95-20,304.38-9,404.79

Finding the Fourth Proportional to 14,709.95, 20,304.38 and 9,404.79

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Solution

The fourth proportional to 14,709.95, 20,304.38 and 9,404.79 is: 12,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.95 : 20,304.38 = 9,404.79 : x
  2. Step 2: Convert to fraction form
    14,709.95/20,304.38 = 9,404.79/x
  3. Step 3: Cross multiply
    14,709.95x = 20,304.38 × 9,404.79
  4. Step 4: Simplify right side
    14,709.95x = 190,958,332.20
  5. Step 5: Solve for x
    x = 190,958,332.20/14,709.95
  6. Step 6: Final answer
    x = 12,981.58

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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.