Home / 12,119.34-16,724.59-6,814.18

Finding the Fourth Proportional to 12,119.34, 16,724.59 and 6,814.18

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Solution

The fourth proportional to 12,119.34, 16,724.59 and 6,814.18 is: 9,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.34 : 16,724.59 = 6,814.18 : x
  2. Step 2: Convert to fraction form
    12,119.34/16,724.59 = 6,814.18/x
  3. Step 3: Cross multiply
    12,119.34x = 16,724.59 × 6,814.18
  4. Step 4: Simplify right side
    12,119.34x = 113,964,307.84
  5. Step 5: Solve for x
    x = 113,964,307.84/12,119.34
  6. Step 6: Final answer
    x = 9,403.51

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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.