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Finding the Fourth Proportional to 12,867, 19,299.93 and 4,973.28

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Solution

The fourth proportional to 12,867, 19,299.93 and 4,973.28 is: 7,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867 : 19,299.93 = 4,973.28 : x
  2. Step 2: Convert to fraction form
    12,867/19,299.93 = 4,973.28/x
  3. Step 3: Cross multiply
    12,867x = 19,299.93 × 4,973.28
  4. Step 4: Simplify right side
    12,867x = 95,983,955.87
  5. Step 5: Solve for x
    x = 95,983,955.87/12,867
  6. Step 6: Final answer
    x = 7,459.70

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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.