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Finding the Fourth Proportional to 14,446.80, 19,909.80 and 10,904.40

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Solution

The fourth proportional to 14,446.80, 19,909.80 and 10,904.40 is: 15,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,446.80 : 19,909.80 = 10,904.40 : x
  2. Step 2: Convert to fraction form
    14,446.80/19,909.80 = 10,904.40/x
  3. Step 3: Cross multiply
    14,446.80x = 19,909.80 × 10,904.40
  4. Step 4: Simplify right side
    14,446.80x = 217,104,423.12
  5. Step 5: Solve for x
    x = 217,104,423.12/14,446.80
  6. Step 6: Final answer
    x = 15,027.86

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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.