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Finding the Fourth Proportional to 14,565.12, 20,100 and 7,941.12

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Solution

The fourth proportional to 14,565.12, 20,100 and 7,941.12 is: 10,958.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,565.12 : 20,100 = 7,941.12 : x
  2. Step 2: Convert to fraction form
    14,565.12/20,100 = 7,941.12/x
  3. Step 3: Cross multiply
    14,565.12x = 20,100 × 7,941.12
  4. Step 4: Simplify right side
    14,565.12x = 159,616,512
  5. Step 5: Solve for x
    x = 159,616,512/14,565.12
  6. Step 6: Final answer
    x = 10,958.82

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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.