Home / 10,612.44-15,915.96-6,453.54

Finding the Fourth Proportional to 10,612.44, 15,915.96 and 6,453.54

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Solution

The fourth proportional to 10,612.44, 15,915.96 and 6,453.54 is: 9,678.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.44 : 15,915.96 = 6,453.54 : x
  2. Step 2: Convert to fraction form
    10,612.44/15,915.96 = 6,453.54/x
  3. Step 3: Cross multiply
    10,612.44x = 15,915.96 × 6,453.54
  4. Step 4: Simplify right side
    10,612.44x = 102,714,284.50
  5. Step 5: Solve for x
    x = 102,714,284.50/10,612.44
  6. Step 6: Final answer
    x = 9,678.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.