Home / 14,175.20-19,561.77-7,887.57

Finding the Fourth Proportional to 14,175.20, 19,561.77 and 7,887.57

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Solution

The fourth proportional to 14,175.20, 19,561.77 and 7,887.57 is: 10,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,175.20 : 19,561.77 = 7,887.57 : x
  2. Step 2: Convert to fraction form
    14,175.20/19,561.77 = 7,887.57/x
  3. Step 3: Cross multiply
    14,175.20x = 19,561.77 × 7,887.57
  4. Step 4: Simplify right side
    14,175.20x = 154,294,830.20
  5. Step 5: Solve for x
    x = 154,294,830.20/14,175.20
  6. Step 6: Final answer
    x = 10,884.85

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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.