Home / 12,777.93-17,636.08-7,401.25

Finding the Fourth Proportional to 12,777.93, 17,636.08 and 7,401.25

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Solution

The fourth proportional to 12,777.93, 17,636.08 and 7,401.25 is: 10,215.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.93 : 17,636.08 = 7,401.25 : x
  2. Step 2: Convert to fraction form
    12,777.93/17,636.08 = 7,401.25/x
  3. Step 3: Cross multiply
    12,777.93x = 17,636.08 × 7,401.25
  4. Step 4: Simplify right side
    12,777.93x = 130,529,004.92
  5. Step 5: Solve for x
    x = 130,529,004.92/12,777.93
  6. Step 6: Final answer
    x = 10,215.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.