Home / 7,420.56-11,130.54-1,873.80

Finding the Fourth Proportional to 7,420.56, 11,130.54 and 1,873.80

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Solution

The fourth proportional to 7,420.56, 11,130.54 and 1,873.80 is: 2,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.56 : 11,130.54 = 1,873.80 : x
  2. Step 2: Convert to fraction form
    7,420.56/11,130.54 = 1,873.80/x
  3. Step 3: Cross multiply
    7,420.56x = 11,130.54 × 1,873.80
  4. Step 4: Simplify right side
    7,420.56x = 20,856,405.85
  5. Step 5: Solve for x
    x = 20,856,405.85/7,420.56
  6. Step 6: Final answer
    x = 2,810.62

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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.