Home / 10,138.73-15,203.93-3,117.03

Finding the Fourth Proportional to 10,138.73, 15,203.93 and 3,117.03

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Solution

The fourth proportional to 10,138.73, 15,203.93 and 3,117.03 is: 4,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.73 : 15,203.93 = 3,117.03 : x
  2. Step 2: Convert to fraction form
    10,138.73/15,203.93 = 3,117.03/x
  3. Step 3: Cross multiply
    10,138.73x = 15,203.93 × 3,117.03
  4. Step 4: Simplify right side
    10,138.73x = 47,391,090.34
  5. Step 5: Solve for x
    x = 47,391,090.34/10,138.73
  6. Step 6: Final answer
    x = 4,674.27

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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.