Home / 8,783.57-12,121.34-4,804.67

Finding the Fourth Proportional to 8,783.57, 12,121.34 and 4,804.67

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Solution

The fourth proportional to 8,783.57, 12,121.34 and 4,804.67 is: 6,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.57 : 12,121.34 = 4,804.67 : x
  2. Step 2: Convert to fraction form
    8,783.57/12,121.34 = 4,804.67/x
  3. Step 3: Cross multiply
    8,783.57x = 12,121.34 × 4,804.67
  4. Step 4: Simplify right side
    8,783.57x = 58,239,038.66
  5. Step 5: Solve for x
    x = 58,239,038.66/8,783.57
  6. Step 6: Final answer
    x = 6,630.45

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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.