Home / 11,355.28-15,661.41-7,377.67

Finding the Fourth Proportional to 11,355.28, 15,661.41 and 7,377.67

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Solution

The fourth proportional to 11,355.28, 15,661.41 and 7,377.67 is: 10,175.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.28 : 15,661.41 = 7,377.67 : x
  2. Step 2: Convert to fraction form
    11,355.28/15,661.41 = 7,377.67/x
  3. Step 3: Cross multiply
    11,355.28x = 15,661.41 × 7,377.67
  4. Step 4: Simplify right side
    11,355.28x = 115,544,714.71
  5. Step 5: Solve for x
    x = 115,544,714.71/11,355.28
  6. Step 6: Final answer
    x = 10,175.42

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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.