Home / 11,135.08-15,376.74-8,335.72

Finding the Fourth Proportional to 11,135.08, 15,376.74 and 8,335.72

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Solution

The fourth proportional to 11,135.08, 15,376.74 and 8,335.72 is: 11,511.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.08 : 15,376.74 = 8,335.72 : x
  2. Step 2: Convert to fraction form
    11,135.08/15,376.74 = 8,335.72/x
  3. Step 3: Cross multiply
    11,135.08x = 15,376.74 × 8,335.72
  4. Step 4: Simplify right side
    11,135.08x = 128,176,199.15
  5. Step 5: Solve for x
    x = 128,176,199.15/11,135.08
  6. Step 6: Final answer
    x = 11,511.03

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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.