Home / 12,079.44-16,673.28-7,830.72

Finding the Fourth Proportional to 12,079.44, 16,673.28 and 7,830.72

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Solution

The fourth proportional to 12,079.44, 16,673.28 and 7,830.72 is: 10,808.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.44 : 16,673.28 = 7,830.72 : x
  2. Step 2: Convert to fraction form
    12,079.44/16,673.28 = 7,830.72/x
  3. Step 3: Cross multiply
    12,079.44x = 16,673.28 × 7,830.72
  4. Step 4: Simplify right side
    12,079.44x = 130,563,787.16
  5. Step 5: Solve for x
    x = 130,563,787.16/12,079.44
  6. Step 6: Final answer
    x = 10,808.76

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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.