Home / 10,218.84-15,320.48-5,285.33

Finding the Fourth Proportional to 10,218.84, 15,320.48 and 5,285.33

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Solution

The fourth proportional to 10,218.84, 15,320.48 and 5,285.33 is: 7,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.84 : 15,320.48 = 5,285.33 : x
  2. Step 2: Convert to fraction form
    10,218.84/15,320.48 = 5,285.33/x
  3. Step 3: Cross multiply
    10,218.84x = 15,320.48 × 5,285.33
  4. Step 4: Simplify right side
    10,218.84x = 80,973,792.56
  5. Step 5: Solve for x
    x = 80,973,792.56/10,218.84
  6. Step 6: Final answer
    x = 7,923.97

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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.