Home / 9,135.40-12,606.82-4,943.64

Finding the Fourth Proportional to 9,135.40, 12,606.82 and 4,943.64

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Solution

The fourth proportional to 9,135.40, 12,606.82 and 4,943.64 is: 6,822.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.40 : 12,606.82 = 4,943.64 : x
  2. Step 2: Convert to fraction form
    9,135.40/12,606.82 = 4,943.64/x
  3. Step 3: Cross multiply
    9,135.40x = 12,606.82 × 4,943.64
  4. Step 4: Simplify right side
    9,135.40x = 62,323,579.62
  5. Step 5: Solve for x
    x = 62,323,579.62/9,135.40
  6. Step 6: Final answer
    x = 6,822.21

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1.5x scale

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.