Home / 9,621.67-13,275.61-6,636.55

Finding the Fourth Proportional to 9,621.67, 13,275.61 and 6,636.55

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Solution

The fourth proportional to 9,621.67, 13,275.61 and 6,636.55 is: 9,156.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.67 : 13,275.61 = 6,636.55 : x
  2. Step 2: Convert to fraction form
    9,621.67/13,275.61 = 6,636.55/x
  3. Step 3: Cross multiply
    9,621.67x = 13,275.61 × 6,636.55
  4. Step 4: Simplify right side
    9,621.67x = 88,104,249.55
  5. Step 5: Solve for x
    x = 88,104,249.55/9,621.67
  6. Step 6: Final answer
    x = 9,156.86

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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.