Home / 10,891.63-16,316.04-7,182.55

Finding the Fourth Proportional to 10,891.63, 16,316.04 and 7,182.55

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Solution

The fourth proportional to 10,891.63, 16,316.04 and 7,182.55 is: 10,759.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.63 : 16,316.04 = 7,182.55 : x
  2. Step 2: Convert to fraction form
    10,891.63/16,316.04 = 7,182.55/x
  3. Step 3: Cross multiply
    10,891.63x = 16,316.04 × 7,182.55
  4. Step 4: Simplify right side
    10,891.63x = 117,190,773.10
  5. Step 5: Solve for x
    x = 117,190,773.10/10,891.63
  6. Step 6: Final answer
    x = 10,759.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.