Home / 11,283.48-15,554.88-7,915.86

Finding the Fourth Proportional to 11,283.48, 15,554.88 and 7,915.86

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Solution

The fourth proportional to 11,283.48, 15,554.88 and 7,915.86 is: 10,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,283.48 : 15,554.88 = 7,915.86 : x
  2. Step 2: Convert to fraction form
    11,283.48/15,554.88 = 7,915.86/x
  3. Step 3: Cross multiply
    11,283.48x = 15,554.88 × 7,915.86
  4. Step 4: Simplify right side
    11,283.48x = 123,130,252.40
  5. Step 5: Solve for x
    x = 123,130,252.40/11,283.48
  6. Step 6: Final answer
    x = 10,912.44

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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.