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Finding the Fourth Proportional to 14,758.88, 20,360.04 and 8,788.64

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Solution

The fourth proportional to 14,758.88, 20,360.04 and 8,788.64 is: 12,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,758.88 : 20,360.04 = 8,788.64 : x
  2. Step 2: Convert to fraction form
    14,758.88/20,360.04 = 8,788.64/x
  3. Step 3: Cross multiply
    14,758.88x = 20,360.04 × 8,788.64
  4. Step 4: Simplify right side
    14,758.88x = 178,937,061.95
  5. Step 5: Solve for x
    x = 178,937,061.95/14,758.88
  6. Step 6: Final answer
    x = 12,124.03

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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.