Home / 10,220.51-15,330.87-2,825.35

Finding the Fourth Proportional to 10,220.51, 15,330.87 and 2,825.35

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Solution

The fourth proportional to 10,220.51, 15,330.87 and 2,825.35 is: 4,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,220.51 : 15,330.87 = 2,825.35 : x
  2. Step 2: Convert to fraction form
    10,220.51/15,330.87 = 2,825.35/x
  3. Step 3: Cross multiply
    10,220.51x = 15,330.87 × 2,825.35
  4. Step 4: Simplify right side
    10,220.51x = 43,315,035.23
  5. Step 5: Solve for x
    x = 43,315,035.23/10,220.51
  6. Step 6: Final answer
    x = 4,238.05

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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.