Home / 7,758.40-11,638.39-4,835.92

Finding the Fourth Proportional to 7,758.40, 11,638.39 and 4,835.92

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Solution

The fourth proportional to 7,758.40, 11,638.39 and 4,835.92 is: 7,254.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.40 : 11,638.39 = 4,835.92 : x
  2. Step 2: Convert to fraction form
    7,758.40/11,638.39 = 4,835.92/x
  3. Step 3: Cross multiply
    7,758.40x = 11,638.39 × 4,835.92
  4. Step 4: Simplify right side
    7,758.40x = 56,282,322.97
  5. Step 5: Solve for x
    x = 56,282,322.97/7,758.40
  6. Step 6: Final answer
    x = 7,254.37

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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.