Home / 15,012.16-20,718.56-9,046.84

Finding the Fourth Proportional to 15,012.16, 20,718.56 and 9,046.84

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Solution

The fourth proportional to 15,012.16, 20,718.56 and 9,046.84 is: 12,485.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.16 : 20,718.56 = 9,046.84 : x
  2. Step 2: Convert to fraction form
    15,012.16/20,718.56 = 9,046.84/x
  3. Step 3: Cross multiply
    15,012.16x = 20,718.56 × 9,046.84
  4. Step 4: Simplify right side
    15,012.16x = 187,437,497.35
  5. Step 5: Solve for x
    x = 187,437,497.35/15,012.16
  6. Step 6: Final answer
    x = 12,485.71

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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.