Home / 12,678.28-17,494.90-7,299.28

Finding the Fourth Proportional to 12,678.28, 17,494.90 and 7,299.28

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Solution

The fourth proportional to 12,678.28, 17,494.90 and 7,299.28 is: 10,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,678.28 : 17,494.90 = 7,299.28 : x
  2. Step 2: Convert to fraction form
    12,678.28/17,494.90 = 7,299.28/x
  3. Step 3: Cross multiply
    12,678.28x = 17,494.90 × 7,299.28
  4. Step 4: Simplify right side
    12,678.28x = 127,700,173.67
  5. Step 5: Solve for x
    x = 127,700,173.67/12,678.28
  6. Step 6: Final answer
    x = 10,072.36

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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.