Home / 12,915.83-19,385.87-6,346.73

Finding the Fourth Proportional to 12,915.83, 19,385.87 and 6,346.73

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Solution

The fourth proportional to 12,915.83, 19,385.87 and 6,346.73 is: 9,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.83 : 19,385.87 = 6,346.73 : x
  2. Step 2: Convert to fraction form
    12,915.83/19,385.87 = 6,346.73/x
  3. Step 3: Cross multiply
    12,915.83x = 19,385.87 × 6,346.73
  4. Step 4: Simplify right side
    12,915.83x = 123,036,754.04
  5. Step 5: Solve for x
    x = 123,036,754.04/12,915.83
  6. Step 6: Final answer
    x = 9,526.05

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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.