Home / 11,116.65-15,342.32-6,401.85

Finding the Fourth Proportional to 11,116.65, 15,342.32 and 6,401.85

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Solution

The fourth proportional to 11,116.65, 15,342.32 and 6,401.85 is: 8,835.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.65 : 15,342.32 = 6,401.85 : x
  2. Step 2: Convert to fraction form
    11,116.65/15,342.32 = 6,401.85/x
  3. Step 3: Cross multiply
    11,116.65x = 15,342.32 × 6,401.85
  4. Step 4: Simplify right side
    11,116.65x = 98,219,199.28
  5. Step 5: Solve for x
    x = 98,219,199.28/11,116.65
  6. Step 6: Final answer
    x = 8,835.32

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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.