Home / 12,045.54-16,615.35-7,853.70

Finding the Fourth Proportional to 12,045.54, 16,615.35 and 7,853.70

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Solution

The fourth proportional to 12,045.54, 16,615.35 and 7,853.70 is: 10,833.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.54 : 16,615.35 = 7,853.70 : x
  2. Step 2: Convert to fraction form
    12,045.54/16,615.35 = 7,853.70/x
  3. Step 3: Cross multiply
    12,045.54x = 16,615.35 × 7,853.70
  4. Step 4: Simplify right side
    12,045.54x = 130,491,974.30
  5. Step 5: Solve for x
    x = 130,491,974.30/12,045.54
  6. Step 6: Final answer
    x = 10,833.22

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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.