Home / 7,345.55-11,021.04-3,398.74

Finding the Fourth Proportional to 7,345.55, 11,021.04 and 3,398.74

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Solution

The fourth proportional to 7,345.55, 11,021.04 and 3,398.74 is: 5,099.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.55 : 11,021.04 = 3,398.74 : x
  2. Step 2: Convert to fraction form
    7,345.55/11,021.04 = 3,398.74/x
  3. Step 3: Cross multiply
    7,345.55x = 11,021.04 × 3,398.74
  4. Step 4: Simplify right side
    7,345.55x = 37,457,621.94
  5. Step 5: Solve for x
    x = 37,457,621.94/7,345.55
  6. Step 6: Final answer
    x = 5,099.36

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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.