Home / 7,823.40-11,727.20-4,903.76

Finding the Fourth Proportional to 7,823.40, 11,727.20 and 4,903.76

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Solution

The fourth proportional to 7,823.40, 11,727.20 and 4,903.76 is: 7,350.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.40 : 11,727.20 = 4,903.76 : x
  2. Step 2: Convert to fraction form
    7,823.40/11,727.20 = 4,903.76/x
  3. Step 3: Cross multiply
    7,823.40x = 11,727.20 × 4,903.76
  4. Step 4: Simplify right side
    7,823.40x = 57,507,374.27
  5. Step 5: Solve for x
    x = 57,507,374.27/7,823.40
  6. Step 6: Final answer
    x = 7,350.69

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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.