Home / 9,506.30-13,091.67-9,302.78

Finding the Fourth Proportional to 9,506.30, 13,091.67 and 9,302.78

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Solution

The fourth proportional to 9,506.30, 13,091.67 and 9,302.78 is: 12,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,506.30 : 13,091.67 = 9,302.78 : x
  2. Step 2: Convert to fraction form
    9,506.30/13,091.67 = 9,302.78/x
  3. Step 3: Cross multiply
    9,506.30x = 13,091.67 × 9,302.78
  4. Step 4: Simplify right side
    9,506.30x = 121,788,925.84
  5. Step 5: Solve for x
    x = 121,788,925.84/9,506.30
  6. Step 6: Final answer
    x = 12,811.39

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Half scale
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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.