Home / 12,279.39-16,941.08-6,971.13

Finding the Fourth Proportional to 12,279.39, 16,941.08 and 6,971.13

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Solution

The fourth proportional to 12,279.39, 16,941.08 and 6,971.13 is: 9,617.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.39 : 16,941.08 = 6,971.13 : x
  2. Step 2: Convert to fraction form
    12,279.39/16,941.08 = 6,971.13/x
  3. Step 3: Cross multiply
    12,279.39x = 16,941.08 × 6,971.13
  4. Step 4: Simplify right side
    12,279.39x = 118,098,488.45
  5. Step 5: Solve for x
    x = 118,098,488.45/12,279.39
  6. Step 6: Final answer
    x = 9,617.62

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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.