Home / 12,719.85-17,562.05-7,941.66

Finding the Fourth Proportional to 12,719.85, 17,562.05 and 7,941.66

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Solution

The fourth proportional to 12,719.85, 17,562.05 and 7,941.66 is: 10,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.85 : 17,562.05 = 7,941.66 : x
  2. Step 2: Convert to fraction form
    12,719.85/17,562.05 = 7,941.66/x
  3. Step 3: Cross multiply
    12,719.85x = 17,562.05 × 7,941.66
  4. Step 4: Simplify right side
    12,719.85x = 139,471,830.00
  5. Step 5: Solve for x
    x = 139,471,830.00/12,719.85
  6. Step 6: Final answer
    x = 10,964.90

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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.