Home / 15,630.30-21,564.54-8,914.86

Finding the Fourth Proportional to 15,630.30, 21,564.54 and 8,914.86

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Solution

The fourth proportional to 15,630.30, 21,564.54 and 8,914.86 is: 12,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.30 : 21,564.54 = 8,914.86 : x
  2. Step 2: Convert to fraction form
    15,630.30/21,564.54 = 8,914.86/x
  3. Step 3: Cross multiply
    15,630.30x = 21,564.54 × 8,914.86
  4. Step 4: Simplify right side
    15,630.30x = 192,244,855.06
  5. Step 5: Solve for x
    x = 192,244,855.06/15,630.30
  6. Step 6: Final answer
    x = 12,299.50

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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.