Home / 12,915.33-19,385.12-6,346.23

Finding the Fourth Proportional to 12,915.33, 19,385.12 and 6,346.23

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Solution

The fourth proportional to 12,915.33, 19,385.12 and 6,346.23 is: 9,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.33 : 19,385.12 = 6,346.23 : x
  2. Step 2: Convert to fraction form
    12,915.33/19,385.12 = 6,346.23/x
  3. Step 3: Cross multiply
    12,915.33x = 19,385.12 × 6,346.23
  4. Step 4: Simplify right side
    12,915.33x = 123,022,301.44
  5. Step 5: Solve for x
    x = 123,022,301.44/12,915.33
  6. Step 6: Final answer
    x = 9,525.30

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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.