Home / 12,941.88-19,417.68-7,751.40

Finding the Fourth Proportional to 12,941.88, 19,417.68 and 7,751.40

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Solution

The fourth proportional to 12,941.88, 19,417.68 and 7,751.40 is: 11,630.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,941.88 : 19,417.68 = 7,751.40 : x
  2. Step 2: Convert to fraction form
    12,941.88/19,417.68 = 7,751.40/x
  3. Step 3: Cross multiply
    12,941.88x = 19,417.68 × 7,751.40
  4. Step 4: Simplify right side
    12,941.88x = 150,514,204.75
  5. Step 5: Solve for x
    x = 150,514,204.75/12,941.88
  6. Step 6: Final answer
    x = 11,630.01

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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.