Home / 7,857.06-11,789.64-4,346.40

Finding the Fourth Proportional to 7,857.06, 11,789.64 and 4,346.40

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Solution

The fourth proportional to 7,857.06, 11,789.64 and 4,346.40 is: 6,521.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.06 : 11,789.64 = 4,346.40 : x
  2. Step 2: Convert to fraction form
    7,857.06/11,789.64 = 4,346.40/x
  3. Step 3: Cross multiply
    7,857.06x = 11,789.64 × 4,346.40
  4. Step 4: Simplify right side
    7,857.06x = 51,242,491.30
  5. Step 5: Solve for x
    x = 51,242,491.30/7,857.06
  6. Step 6: Final answer
    x = 6,521.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.