Home / 14,709.99-20,300.04-8,422.32

Finding the Fourth Proportional to 14,709.99, 20,300.04 and 8,422.32

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Solution

The fourth proportional to 14,709.99, 20,300.04 and 8,422.32 is: 11,622.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.99 : 20,300.04 = 8,422.32 : x
  2. Step 2: Convert to fraction form
    14,709.99/20,300.04 = 8,422.32/x
  3. Step 3: Cross multiply
    14,709.99x = 20,300.04 × 8,422.32
  4. Step 4: Simplify right side
    14,709.99x = 170,973,432.89
  5. Step 5: Solve for x
    x = 170,973,432.89/14,709.99
  6. Step 6: Final answer
    x = 11,622.95

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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.