Home / 7,628.12-11,430.42-5,153.24

Finding the Fourth Proportional to 7,628.12, 11,430.42 and 5,153.24

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Solution

The fourth proportional to 7,628.12, 11,430.42 and 5,153.24 is: 7,721.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.12 : 11,430.42 = 5,153.24 : x
  2. Step 2: Convert to fraction form
    7,628.12/11,430.42 = 5,153.24/x
  3. Step 3: Cross multiply
    7,628.12x = 11,430.42 × 5,153.24
  4. Step 4: Simplify right side
    7,628.12x = 58,903,697.56
  5. Step 5: Solve for x
    x = 58,903,697.56/7,628.12
  6. Step 6: Final answer
    x = 7,721.92

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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.