Home / 8,219.72-11,342.40-4,682.72

Finding the Fourth Proportional to 8,219.72, 11,342.40 and 4,682.72

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Solution

The fourth proportional to 8,219.72, 11,342.40 and 4,682.72 is: 6,461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.72 : 11,342.40 = 4,682.72 : x
  2. Step 2: Convert to fraction form
    8,219.72/11,342.40 = 4,682.72/x
  3. Step 3: Cross multiply
    8,219.72x = 11,342.40 × 4,682.72
  4. Step 4: Simplify right side
    8,219.72x = 53,113,283.33
  5. Step 5: Solve for x
    x = 53,113,283.33/8,219.72
  6. Step 6: Final answer
    x = 6,461.69

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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.