Home / 14,342.36-21,390.86-12,598.80

Finding the Fourth Proportional to 14,342.36, 21,390.86 and 12,598.80

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Solution

The fourth proportional to 14,342.36, 21,390.86 and 12,598.80 is: 18,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,342.36 : 21,390.86 = 12,598.80 : x
  2. Step 2: Convert to fraction form
    14,342.36/21,390.86 = 12,598.80/x
  3. Step 3: Cross multiply
    14,342.36x = 21,390.86 × 12,598.80
  4. Step 4: Simplify right side
    14,342.36x = 269,499,166.97
  5. Step 5: Solve for x
    x = 269,499,166.97/14,342.36
  6. Step 6: Final answer
    x = 18,790.43

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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.