Home / 14,224.19-21,228.14-12,647.82

Finding the Fourth Proportional to 14,224.19, 21,228.14 and 12,647.82

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Solution

The fourth proportional to 14,224.19, 21,228.14 and 12,647.82 is: 18,875.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,224.19 : 21,228.14 = 12,647.82 : x
  2. Step 2: Convert to fraction form
    14,224.19/21,228.14 = 12,647.82/x
  3. Step 3: Cross multiply
    14,224.19x = 21,228.14 × 12,647.82
  4. Step 4: Simplify right side
    14,224.19x = 268,489,630.42
  5. Step 5: Solve for x
    x = 268,489,630.42/14,224.19
  6. Step 6: Final answer
    x = 18,875.56

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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.