Home / 17,187.50-23,700.76-12,720.62

Finding the Fourth Proportional to 17,187.50, 23,700.76 and 12,720.62

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Solution

The fourth proportional to 17,187.50, 23,700.76 and 12,720.62 is: 17,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,187.50 : 23,700.76 = 12,720.62 : x
  2. Step 2: Convert to fraction form
    17,187.50/23,700.76 = 12,720.62/x
  3. Step 3: Cross multiply
    17,187.50x = 23,700.76 × 12,720.62
  4. Step 4: Simplify right side
    17,187.50x = 301,488,361.67
  5. Step 5: Solve for x
    x = 301,488,361.67/17,187.50
  6. Step 6: Final answer
    x = 17,541.14

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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.