Home / 14,255.55-19,671.87-7,881.77

Finding the Fourth Proportional to 14,255.55, 19,671.87 and 7,881.77

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Solution

The fourth proportional to 14,255.55, 19,671.87 and 7,881.77 is: 10,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.55 : 19,671.87 = 7,881.77 : x
  2. Step 2: Convert to fraction form
    14,255.55/19,671.87 = 7,881.77/x
  3. Step 3: Cross multiply
    14,255.55x = 19,671.87 × 7,881.77
  4. Step 4: Simplify right side
    14,255.55x = 155,049,174.43
  5. Step 5: Solve for x
    x = 155,049,174.43/14,255.55
  6. Step 6: Final answer
    x = 10,876.40

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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.