Home / 9,864.78-14,768.40-5,173.66

Finding the Fourth Proportional to 9,864.78, 14,768.40 and 5,173.66

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Solution

The fourth proportional to 9,864.78, 14,768.40 and 5,173.66 is: 7,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.78 : 14,768.40 = 5,173.66 : x
  2. Step 2: Convert to fraction form
    9,864.78/14,768.40 = 5,173.66/x
  3. Step 3: Cross multiply
    9,864.78x = 14,768.40 × 5,173.66
  4. Step 4: Simplify right side
    9,864.78x = 76,406,680.34
  5. Step 5: Solve for x
    x = 76,406,680.34/9,864.78
  6. Step 6: Final answer
    x = 7,745.40

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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.