Home / 9,336.12-12,869.10-9,151.80

Finding the Fourth Proportional to 9,336.12, 12,869.10 and 9,151.80

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Solution

The fourth proportional to 9,336.12, 12,869.10 and 9,151.80 is: 12,615.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,336.12 : 12,869.10 = 9,151.80 : x
  2. Step 2: Convert to fraction form
    9,336.12/12,869.10 = 9,151.80/x
  3. Step 3: Cross multiply
    9,336.12x = 12,869.10 × 9,151.80
  4. Step 4: Simplify right side
    9,336.12x = 117,775,429.38
  5. Step 5: Solve for x
    x = 117,775,429.38/9,336.12
  6. Step 6: Final answer
    x = 12,615.03

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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.