Home / 9,038.78-13,554.81-3,114.02

Finding the Fourth Proportional to 9,038.78, 13,554.81 and 3,114.02

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Solution

The fourth proportional to 9,038.78, 13,554.81 and 3,114.02 is: 4,669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,038.78 : 13,554.81 = 3,114.02 : x
  2. Step 2: Convert to fraction form
    9,038.78/13,554.81 = 3,114.02/x
  3. Step 3: Cross multiply
    9,038.78x = 13,554.81 × 3,114.02
  4. Step 4: Simplify right side
    9,038.78x = 42,209,949.44
  5. Step 5: Solve for x
    x = 42,209,949.44/9,038.78
  6. Step 6: Final answer
    x = 4,669.87

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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.