Home / 9,964.56-13,748.76-6,428.64

Finding the Fourth Proportional to 9,964.56, 13,748.76 and 6,428.64

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Solution

The fourth proportional to 9,964.56, 13,748.76 and 6,428.64 is: 8,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,964.56 : 13,748.76 = 6,428.64 : x
  2. Step 2: Convert to fraction form
    9,964.56/13,748.76 = 6,428.64/x
  3. Step 3: Cross multiply
    9,964.56x = 13,748.76 × 6,428.64
  4. Step 4: Simplify right side
    9,964.56x = 88,385,828.49
  5. Step 5: Solve for x
    x = 88,385,828.49/9,964.56
  6. Step 6: Final answer
    x = 8,870.02

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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.