Home / 11,361.72-15,678.40-6,325.68

Finding the Fourth Proportional to 11,361.72, 15,678.40 and 6,325.68

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Solution

The fourth proportional to 11,361.72, 15,678.40 and 6,325.68 is: 8,729.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.72 : 15,678.40 = 6,325.68 : x
  2. Step 2: Convert to fraction form
    11,361.72/15,678.40 = 6,325.68/x
  3. Step 3: Cross multiply
    11,361.72x = 15,678.40 × 6,325.68
  4. Step 4: Simplify right side
    11,361.72x = 99,176,541.31
  5. Step 5: Solve for x
    x = 99,176,541.31/11,361.72
  6. Step 6: Final answer
    x = 8,729.01

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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.