Home / 9,264.78-13,896.09-3,420.90

Finding the Fourth Proportional to 9,264.78, 13,896.09 and 3,420.90

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Solution

The fourth proportional to 9,264.78, 13,896.09 and 3,420.90 is: 5,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,264.78 : 13,896.09 = 3,420.90 : x
  2. Step 2: Convert to fraction form
    9,264.78/13,896.09 = 3,420.90/x
  3. Step 3: Cross multiply
    9,264.78x = 13,896.09 × 3,420.90
  4. Step 4: Simplify right side
    9,264.78x = 47,537,134.28
  5. Step 5: Solve for x
    x = 47,537,134.28/9,264.78
  6. Step 6: Final answer
    x = 5,130.95

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1.5x scale

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.