Home / 12,967.79-19,433.28-9,995

Finding the Fourth Proportional to 12,967.79, 19,433.28 and 9,995

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Solution

The fourth proportional to 12,967.79, 19,433.28 and 9,995 is: 14,978.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,967.79 : 19,433.28 = 9,995 : x
  2. Step 2: Convert to fraction form
    12,967.79/19,433.28 = 9,995/x
  3. Step 3: Cross multiply
    12,967.79x = 19,433.28 × 9,995
  4. Step 4: Simplify right side
    12,967.79x = 194,235,633.60
  5. Step 5: Solve for x
    x = 194,235,633.60/12,967.79
  6. Step 6: Final answer
    x = 14,978.31

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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.