Home / 7,748.19-11,617.42-5,640.57

Finding the Fourth Proportional to 7,748.19, 11,617.42 and 5,640.57

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Solution

The fourth proportional to 7,748.19, 11,617.42 and 5,640.57 is: 8,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.19 : 11,617.42 = 5,640.57 : x
  2. Step 2: Convert to fraction form
    7,748.19/11,617.42 = 5,640.57/x
  3. Step 3: Cross multiply
    7,748.19x = 11,617.42 × 5,640.57
  4. Step 4: Simplify right side
    7,748.19x = 65,528,842.53
  5. Step 5: Solve for x
    x = 65,528,842.53/7,748.19
  6. Step 6: Final answer
    x = 8,457.31

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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.