Home / 15,289.37-21,099.30-8,484.43

Finding the Fourth Proportional to 15,289.37, 21,099.30 and 8,484.43

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Solution

The fourth proportional to 15,289.37, 21,099.30 and 8,484.43 is: 11,708.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.37 : 21,099.30 = 8,484.43 : x
  2. Step 2: Convert to fraction form
    15,289.37/21,099.30 = 8,484.43/x
  3. Step 3: Cross multiply
    15,289.37x = 21,099.30 × 8,484.43
  4. Step 4: Simplify right side
    15,289.37x = 179,015,512.76
  5. Step 5: Solve for x
    x = 179,015,512.76/15,289.37
  6. Step 6: Final answer
    x = 11,708.49

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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.