Home / 9,830.60-13,583.50-7,857.44

Finding the Fourth Proportional to 9,830.60, 13,583.50 and 7,857.44

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Solution

The fourth proportional to 9,830.60, 13,583.50 and 7,857.44 is: 10,857.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,830.60 : 13,583.50 = 7,857.44 : x
  2. Step 2: Convert to fraction form
    9,830.60/13,583.50 = 7,857.44/x
  3. Step 3: Cross multiply
    9,830.60x = 13,583.50 × 7,857.44
  4. Step 4: Simplify right side
    9,830.60x = 106,731,536.24
  5. Step 5: Solve for x
    x = 106,731,536.24/9,830.60
  6. Step 6: Final answer
    x = 10,857.07

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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.