Home / 7,623.70-11,432.80-5,278.14

Finding the Fourth Proportional to 7,623.70, 11,432.80 and 5,278.14

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Solution

The fourth proportional to 7,623.70, 11,432.80 and 5,278.14 is: 7,915.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.70 : 11,432.80 = 5,278.14 : x
  2. Step 2: Convert to fraction form
    7,623.70/11,432.80 = 5,278.14/x
  3. Step 3: Cross multiply
    7,623.70x = 11,432.80 × 5,278.14
  4. Step 4: Simplify right side
    7,623.70x = 60,343,918.99
  5. Step 5: Solve for x
    x = 60,343,918.99/7,623.70
  6. Step 6: Final answer
    x = 7,915.31

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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.