Home / 14,013.19-21,009.25-6,613.44

Finding the Fourth Proportional to 14,013.19, 21,009.25 and 6,613.44

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Solution

The fourth proportional to 14,013.19, 21,009.25 and 6,613.44 is: 9,915.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013.19 : 21,009.25 = 6,613.44 : x
  2. Step 2: Convert to fraction form
    14,013.19/21,009.25 = 6,613.44/x
  3. Step 3: Cross multiply
    14,013.19x = 21,009.25 × 6,613.44
  4. Step 4: Simplify right side
    14,013.19x = 138,943,414.32
  5. Step 5: Solve for x
    x = 138,943,414.32/14,013.19
  6. Step 6: Final answer
    x = 9,915.19

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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.