Home / 11,435.76-15,782.81-6,400.26

Finding the Fourth Proportional to 11,435.76, 15,782.81 and 6,400.26

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Solution

The fourth proportional to 11,435.76, 15,782.81 and 6,400.26 is: 8,833.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,435.76 : 15,782.81 = 6,400.26 : x
  2. Step 2: Convert to fraction form
    11,435.76/15,782.81 = 6,400.26/x
  3. Step 3: Cross multiply
    11,435.76x = 15,782.81 × 6,400.26
  4. Step 4: Simplify right side
    11,435.76x = 101,014,055.53
  5. Step 5: Solve for x
    x = 101,014,055.53/11,435.76
  6. Step 6: Final answer
    x = 8,833.17

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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.