Home / 7,670.34-11,512.32-3,975.07

Finding the Fourth Proportional to 7,670.34, 11,512.32 and 3,975.07

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Solution

The fourth proportional to 7,670.34, 11,512.32 and 3,975.07 is: 5,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.34 : 11,512.32 = 3,975.07 : x
  2. Step 2: Convert to fraction form
    7,670.34/11,512.32 = 3,975.07/x
  3. Step 3: Cross multiply
    7,670.34x = 11,512.32 × 3,975.07
  4. Step 4: Simplify right side
    7,670.34x = 45,762,277.86
  5. Step 5: Solve for x
    x = 45,762,277.86/7,670.34
  6. Step 6: Final answer
    x = 5,966.13

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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.