Home / 8,964.92-12,370.64-4,985.39

Finding the Fourth Proportional to 8,964.92, 12,370.64 and 4,985.39

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Solution

The fourth proportional to 8,964.92, 12,370.64 and 4,985.39 is: 6,879.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.92 : 12,370.64 = 4,985.39 : x
  2. Step 2: Convert to fraction form
    8,964.92/12,370.64 = 4,985.39/x
  3. Step 3: Cross multiply
    8,964.92x = 12,370.64 × 4,985.39
  4. Step 4: Simplify right side
    8,964.92x = 61,672,464.95
  5. Step 5: Solve for x
    x = 61,672,464.95/8,964.92
  6. Step 6: Final answer
    x = 6,879.31

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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.