Home / 14,142.52-21,110.09-12,482.02

Finding the Fourth Proportional to 14,142.52, 21,110.09 and 12,482.02

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Solution

The fourth proportional to 14,142.52, 21,110.09 and 12,482.02 is: 18,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.52 : 21,110.09 = 12,482.02 : x
  2. Step 2: Convert to fraction form
    14,142.52/21,110.09 = 12,482.02/x
  3. Step 3: Cross multiply
    14,142.52x = 21,110.09 × 12,482.02
  4. Step 4: Simplify right side
    14,142.52x = 263,496,565.58
  5. Step 5: Solve for x
    x = 263,496,565.58/14,142.52
  6. Step 6: Final answer
    x = 18,631.51

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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.