Home / 12,079.76-16,668.45-7,043.58

Finding the Fourth Proportional to 12,079.76, 16,668.45 and 7,043.58

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Solution

The fourth proportional to 12,079.76, 16,668.45 and 7,043.58 is: 9,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.76 : 16,668.45 = 7,043.58 : x
  2. Step 2: Convert to fraction form
    12,079.76/16,668.45 = 7,043.58/x
  3. Step 3: Cross multiply
    12,079.76x = 16,668.45 × 7,043.58
  4. Step 4: Simplify right side
    12,079.76x = 117,405,561.05
  5. Step 5: Solve for x
    x = 117,405,561.05/12,079.76
  6. Step 6: Final answer
    x = 9,719.20

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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.