Home / 9,863.72-13,611.40-5,386.58

Finding the Fourth Proportional to 9,863.72, 13,611.40 and 5,386.58

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Solution

The fourth proportional to 9,863.72, 13,611.40 and 5,386.58 is: 7,433.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.72 : 13,611.40 = 5,386.58 : x
  2. Step 2: Convert to fraction form
    9,863.72/13,611.40 = 5,386.58/x
  3. Step 3: Cross multiply
    9,863.72x = 13,611.40 × 5,386.58
  4. Step 4: Simplify right side
    9,863.72x = 73,318,895.01
  5. Step 5: Solve for x
    x = 73,318,895.01/9,863.72
  6. Step 6: Final answer
    x = 7,433.19

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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.