Home / 9,117.84-13,647.56-4,729.28

Finding the Fourth Proportional to 9,117.84, 13,647.56 and 4,729.28

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Solution

The fourth proportional to 9,117.84, 13,647.56 and 4,729.28 is: 7,078.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.84 : 13,647.56 = 4,729.28 : x
  2. Step 2: Convert to fraction form
    9,117.84/13,647.56 = 4,729.28/x
  3. Step 3: Cross multiply
    9,117.84x = 13,647.56 × 4,729.28
  4. Step 4: Simplify right side
    9,117.84x = 64,543,132.56
  5. Step 5: Solve for x
    x = 64,543,132.56/9,117.84
  6. Step 6: Final answer
    x = 7,078.77

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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.