Home / 8,949.21-12,348.95-4,969.57

Finding the Fourth Proportional to 8,949.21, 12,348.95 and 4,969.57

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Solution

The fourth proportional to 8,949.21, 12,348.95 and 4,969.57 is: 6,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.21 : 12,348.95 = 4,969.57 : x
  2. Step 2: Convert to fraction form
    8,949.21/12,348.95 = 4,969.57/x
  3. Step 3: Cross multiply
    8,949.21x = 12,348.95 × 4,969.57
  4. Step 4: Simplify right side
    8,949.21x = 61,368,971.45
  5. Step 5: Solve for x
    x = 61,368,971.45/8,949.21
  6. Step 6: Final answer
    x = 6,857.47

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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.