Home / 14,079.66-21,125.36-6,178.09

Finding the Fourth Proportional to 14,079.66, 21,125.36 and 6,178.09

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Solution

The fourth proportional to 14,079.66, 21,125.36 and 6,178.09 is: 9,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.66 : 21,125.36 = 6,178.09 : x
  2. Step 2: Convert to fraction form
    14,079.66/21,125.36 = 6,178.09/x
  3. Step 3: Cross multiply
    14,079.66x = 21,125.36 × 6,178.09
  4. Step 4: Simplify right side
    14,079.66x = 130,514,428.18
  5. Step 5: Solve for x
    x = 130,514,428.18/14,079.66
  6. Step 6: Final answer
    x = 9,269.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.