Home / 14,984.64-20,628-12,876.48

Finding the Fourth Proportional to 14,984.64, 20,628 and 12,876.48

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Solution

The fourth proportional to 14,984.64, 20,628 and 12,876.48 is: 17,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,984.64 : 20,628 = 12,876.48 : x
  2. Step 2: Convert to fraction form
    14,984.64/20,628 = 12,876.48/x
  3. Step 3: Cross multiply
    14,984.64x = 20,628 × 12,876.48
  4. Step 4: Simplify right side
    14,984.64x = 265,616,029.44
  5. Step 5: Solve for x
    x = 265,616,029.44/14,984.64
  6. Step 6: Final answer
    x = 17,725.89

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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.