Home / 14,343.58-19,740.21-12,134.50

Finding the Fourth Proportional to 14,343.58, 19,740.21 and 12,134.50

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Solution

The fourth proportional to 14,343.58, 19,740.21 and 12,134.50 is: 16,699.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.58 : 19,740.21 = 12,134.50 : x
  2. Step 2: Convert to fraction form
    14,343.58/19,740.21 = 12,134.50/x
  3. Step 3: Cross multiply
    14,343.58x = 19,740.21 × 12,134.50
  4. Step 4: Simplify right side
    14,343.58x = 239,537,578.25
  5. Step 5: Solve for x
    x = 239,537,578.25/14,343.58
  6. Step 6: Final answer
    x = 16,699.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.