Home / 14,072.72-21,005.14-12,412.52

Finding the Fourth Proportional to 14,072.72, 21,005.14 and 12,412.52

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Solution

The fourth proportional to 14,072.72, 21,005.14 and 12,412.52 is: 18,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.72 : 21,005.14 = 12,412.52 : x
  2. Step 2: Convert to fraction form
    14,072.72/21,005.14 = 12,412.52/x
  3. Step 3: Cross multiply
    14,072.72x = 21,005.14 × 12,412.52
  4. Step 4: Simplify right side
    14,072.72x = 260,726,720.35
  5. Step 5: Solve for x
    x = 260,726,720.35/14,072.72
  6. Step 6: Final answer
    x = 18,527.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.