Home / 9,187.03-12,655.60-6,661.72

Finding the Fourth Proportional to 9,187.03, 12,655.60 and 6,661.72

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Solution

The fourth proportional to 9,187.03, 12,655.60 and 6,661.72 is: 9,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,187.03 : 12,655.60 = 6,661.72 : x
  2. Step 2: Convert to fraction form
    9,187.03/12,655.60 = 6,661.72/x
  3. Step 3: Cross multiply
    9,187.03x = 12,655.60 × 6,661.72
  4. Step 4: Simplify right side
    9,187.03x = 84,308,063.63
  5. Step 5: Solve for x
    x = 84,308,063.63/9,187.03
  6. Step 6: Final answer
    x = 9,176.86

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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.