Home / 12,383.96-17,089.72-6,718.68

Finding the Fourth Proportional to 12,383.96, 17,089.72 and 6,718.68

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Solution

The fourth proportional to 12,383.96, 17,089.72 and 6,718.68 is: 9,271.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.96 : 17,089.72 = 6,718.68 : x
  2. Step 2: Convert to fraction form
    12,383.96/17,089.72 = 6,718.68/x
  3. Step 3: Cross multiply
    12,383.96x = 17,089.72 × 6,718.68
  4. Step 4: Simplify right side
    12,383.96x = 114,820,343.17
  5. Step 5: Solve for x
    x = 114,820,343.17/12,383.96
  6. Step 6: Final answer
    x = 9,271.70

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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.