Home / 14,904.63-20,591.69-12,690.09

Finding the Fourth Proportional to 14,904.63, 20,591.69 and 12,690.09

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Solution

The fourth proportional to 14,904.63, 20,591.69 and 12,690.09 is: 17,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,904.63 : 20,591.69 = 12,690.09 : x
  2. Step 2: Convert to fraction form
    14,904.63/20,591.69 = 12,690.09/x
  3. Step 3: Cross multiply
    14,904.63x = 20,591.69 × 12,690.09
  4. Step 4: Simplify right side
    14,904.63x = 261,310,335.90
  5. Step 5: Solve for x
    x = 261,310,335.90/14,904.63
  6. Step 6: Final answer
    x = 17,532.16

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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.