Home / 13,941.42-19,235.85-7,891.74

Finding the Fourth Proportional to 13,941.42, 19,235.85 and 7,891.74

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Solution

The fourth proportional to 13,941.42, 19,235.85 and 7,891.74 is: 10,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.42 : 19,235.85 = 7,891.74 : x
  2. Step 2: Convert to fraction form
    13,941.42/19,235.85 = 7,891.74/x
  3. Step 3: Cross multiply
    13,941.42x = 19,235.85 × 7,891.74
  4. Step 4: Simplify right side
    13,941.42x = 151,804,326.88
  5. Step 5: Solve for x
    x = 151,804,326.88/13,941.42
  6. Step 6: Final answer
    x = 10,888.73

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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.