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Finding the Fourth Proportional to 11,541.80, 17,315.90 and 7,653.80

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Solution

The fourth proportional to 11,541.80, 17,315.90 and 7,653.80 is: 11,482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,541.80 : 17,315.90 = 7,653.80 : x
  2. Step 2: Convert to fraction form
    11,541.80/17,315.90 = 7,653.80/x
  3. Step 3: Cross multiply
    11,541.80x = 17,315.90 × 7,653.80
  4. Step 4: Simplify right side
    11,541.80x = 132,532,435.42
  5. Step 5: Solve for x
    x = 132,532,435.42/11,541.80
  6. Step 6: Final answer
    x = 11,482.82

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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.