Home / 12,586.41-17,370.63-7,281

Finding the Fourth Proportional to 12,586.41, 17,370.63 and 7,281

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Solution

The fourth proportional to 12,586.41, 17,370.63 and 7,281 is: 10,048.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.41 : 17,370.63 = 7,281 : x
  2. Step 2: Convert to fraction form
    12,586.41/17,370.63 = 7,281/x
  3. Step 3: Cross multiply
    12,586.41x = 17,370.63 × 7,281
  4. Step 4: Simplify right side
    12,586.41x = 126,475,557.03
  5. Step 5: Solve for x
    x = 126,475,557.03/12,586.41
  6. Step 6: Final answer
    x = 10,048.58

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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.