Home / 12,528.74-17,289.45-6,939.62

Finding the Fourth Proportional to 12,528.74, 17,289.45 and 6,939.62

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Solution

The fourth proportional to 12,528.74, 17,289.45 and 6,939.62 is: 9,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.74 : 17,289.45 = 6,939.62 : x
  2. Step 2: Convert to fraction form
    12,528.74/17,289.45 = 6,939.62/x
  3. Step 3: Cross multiply
    12,528.74x = 17,289.45 × 6,939.62
  4. Step 4: Simplify right side
    12,528.74x = 119,982,213.01
  5. Step 5: Solve for x
    x = 119,982,213.01/12,528.74
  6. Step 6: Final answer
    x = 9,576.56

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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.