Home / 8,935.12-12,331.84-8,541.36

Finding the Fourth Proportional to 8,935.12, 12,331.84 and 8,541.36

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Solution

The fourth proportional to 8,935.12, 12,331.84 and 8,541.36 is: 11,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.12 : 12,331.84 = 8,541.36 : x
  2. Step 2: Convert to fraction form
    8,935.12/12,331.84 = 8,541.36/x
  3. Step 3: Cross multiply
    8,935.12x = 12,331.84 × 8,541.36
  4. Step 4: Simplify right side
    8,935.12x = 105,330,684.90
  5. Step 5: Solve for x
    x = 105,330,684.90/8,935.12
  6. Step 6: Final answer
    x = 11,788.39

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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.