Home / 9,956.56-13,731.40-6,418.64

Finding the Fourth Proportional to 9,956.56, 13,731.40 and 6,418.64

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Solution

The fourth proportional to 9,956.56, 13,731.40 and 6,418.64 is: 8,852.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,956.56 : 13,731.40 = 6,418.64 : x
  2. Step 2: Convert to fraction form
    9,956.56/13,731.40 = 6,418.64/x
  3. Step 3: Cross multiply
    9,956.56x = 13,731.40 × 6,418.64
  4. Step 4: Simplify right side
    9,956.56x = 88,136,913.30
  5. Step 5: Solve for x
    x = 88,136,913.30/9,956.56
  6. Step 6: Final answer
    x = 8,852.15

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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.