Home / 12,167.63-16,791.35-7,130.85

Finding the Fourth Proportional to 12,167.63, 16,791.35 and 7,130.85

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Solution

The fourth proportional to 12,167.63, 16,791.35 and 7,130.85 is: 9,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.63 : 16,791.35 = 7,130.85 : x
  2. Step 2: Convert to fraction form
    12,167.63/16,791.35 = 7,130.85/x
  3. Step 3: Cross multiply
    12,167.63x = 16,791.35 × 7,130.85
  4. Step 4: Simplify right side
    12,167.63x = 119,736,598.15
  5. Step 5: Solve for x
    x = 119,736,598.15/12,167.63
  6. Step 6: Final answer
    x = 9,840.59

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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.