Home / 12,848.07-17,735.81-7,813.91

Finding the Fourth Proportional to 12,848.07, 17,735.81 and 7,813.91

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Solution

The fourth proportional to 12,848.07, 17,735.81 and 7,813.91 is: 10,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.07 : 17,735.81 = 7,813.91 : x
  2. Step 2: Convert to fraction form
    12,848.07/17,735.81 = 7,813.91/x
  3. Step 3: Cross multiply
    12,848.07x = 17,735.81 × 7,813.91
  4. Step 4: Simplify right side
    12,848.07x = 138,586,000.48
  5. Step 5: Solve for x
    x = 138,586,000.48/12,848.07
  6. Step 6: Final answer
    x = 10,786.52

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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.