Home / 14,157.74-21,180.72-12,495.62

Finding the Fourth Proportional to 14,157.74, 21,180.72 and 12,495.62

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Solution

The fourth proportional to 14,157.74, 21,180.72 and 12,495.62 is: 18,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.74 : 21,180.72 = 12,495.62 : x
  2. Step 2: Convert to fraction form
    14,157.74/21,180.72 = 12,495.62/x
  3. Step 3: Cross multiply
    14,157.74x = 21,180.72 × 12,495.62
  4. Step 4: Simplify right side
    14,157.74x = 264,666,228.45
  5. Step 5: Solve for x
    x = 264,666,228.45/14,157.74
  6. Step 6: Final answer
    x = 18,694.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.