Home / 8,974.83-12,385.67-4,996.20

Finding the Fourth Proportional to 8,974.83, 12,385.67 and 4,996.20

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Solution

The fourth proportional to 8,974.83, 12,385.67 and 4,996.20 is: 6,894.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.83 : 12,385.67 = 4,996.20 : x
  2. Step 2: Convert to fraction form
    8,974.83/12,385.67 = 4,996.20/x
  3. Step 3: Cross multiply
    8,974.83x = 12,385.67 × 4,996.20
  4. Step 4: Simplify right side
    8,974.83x = 61,881,284.45
  5. Step 5: Solve for x
    x = 61,881,284.45/8,974.83
  6. Step 6: Final answer
    x = 6,894.98

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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.