Home / 7,811.08-10,783.20-5,306.44

Finding the Fourth Proportional to 7,811.08, 10,783.20 and 5,306.44

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Solution

The fourth proportional to 7,811.08, 10,783.20 and 5,306.44 is: 7,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.08 : 10,783.20 = 5,306.44 : x
  2. Step 2: Convert to fraction form
    7,811.08/10,783.20 = 5,306.44/x
  3. Step 3: Cross multiply
    7,811.08x = 10,783.20 × 5,306.44
  4. Step 4: Simplify right side
    7,811.08x = 57,220,403.81
  5. Step 5: Solve for x
    x = 57,220,403.81/7,811.08
  6. Step 6: Final answer
    x = 7,325.54

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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.