Home / 11,361.47-15,678.63-6,325.66

Finding the Fourth Proportional to 11,361.47, 15,678.63 and 6,325.66

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Solution

The fourth proportional to 11,361.47, 15,678.63 and 6,325.66 is: 8,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.47 : 15,678.63 = 6,325.66 : x
  2. Step 2: Convert to fraction form
    11,361.47/15,678.63 = 6,325.66/x
  3. Step 3: Cross multiply
    11,361.47x = 15,678.63 × 6,325.66
  4. Step 4: Simplify right side
    11,361.47x = 99,177,702.24
  5. Step 5: Solve for x
    x = 99,177,702.24/11,361.47
  6. Step 6: Final answer
    x = 8,729.31

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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.