Home / 11,416.86-15,751.74-6,380.40

Finding the Fourth Proportional to 11,416.86, 15,751.74 and 6,380.40

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Solution

The fourth proportional to 11,416.86, 15,751.74 and 6,380.40 is: 8,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,416.86 : 15,751.74 = 6,380.40 : x
  2. Step 2: Convert to fraction form
    11,416.86/15,751.74 = 6,380.40/x
  3. Step 3: Cross multiply
    11,416.86x = 15,751.74 × 6,380.40
  4. Step 4: Simplify right side
    11,416.86x = 100,502,401.90
  5. Step 5: Solve for x
    x = 100,502,401.90/11,416.86
  6. Step 6: Final answer
    x = 8,802.98

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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.