Home / 14,999.28-20,701.89-8,630.16

Finding the Fourth Proportional to 14,999.28, 20,701.89 and 8,630.16

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Solution

The fourth proportional to 14,999.28, 20,701.89 and 8,630.16 is: 11,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,999.28 : 20,701.89 = 8,630.16 : x
  2. Step 2: Convert to fraction form
    14,999.28/20,701.89 = 8,630.16/x
  3. Step 3: Cross multiply
    14,999.28x = 20,701.89 × 8,630.16
  4. Step 4: Simplify right side
    14,999.28x = 178,660,623.00
  5. Step 5: Solve for x
    x = 178,660,623.00/14,999.28
  6. Step 6: Final answer
    x = 11,911.28

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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.