Home / 9,890.64-14,867.28-5,516.64

Finding the Fourth Proportional to 9,890.64, 14,867.28 and 5,516.64

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Solution

The fourth proportional to 9,890.64, 14,867.28 and 5,516.64 is: 8,292.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.64 : 14,867.28 = 5,516.64 : x
  2. Step 2: Convert to fraction form
    9,890.64/14,867.28 = 5,516.64/x
  3. Step 3: Cross multiply
    9,890.64x = 14,867.28 × 5,516.64
  4. Step 4: Simplify right side
    9,890.64x = 82,017,431.54
  5. Step 5: Solve for x
    x = 82,017,431.54/9,890.64
  6. Step 6: Final answer
    x = 8,292.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.