Home / 7,457.37-11,189.70-5,280.09

Finding the Fourth Proportional to 7,457.37, 11,189.70 and 5,280.09

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Solution

The fourth proportional to 7,457.37, 11,189.70 and 5,280.09 is: 7,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.37 : 11,189.70 = 5,280.09 : x
  2. Step 2: Convert to fraction form
    7,457.37/11,189.70 = 5,280.09/x
  3. Step 3: Cross multiply
    7,457.37x = 11,189.70 × 5,280.09
  4. Step 4: Simplify right side
    7,457.37x = 59,082,623.07
  5. Step 5: Solve for x
    x = 59,082,623.07/7,457.37
  6. Step 6: Final answer
    x = 7,922.72

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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.