Home / 12,454.21-17,186.81-6,788.84

Finding the Fourth Proportional to 12,454.21, 17,186.81 and 6,788.84

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Solution

The fourth proportional to 12,454.21, 17,186.81 and 6,788.84 is: 9,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.21 : 17,186.81 = 6,788.84 : x
  2. Step 2: Convert to fraction form
    12,454.21/17,186.81 = 6,788.84/x
  3. Step 3: Cross multiply
    12,454.21x = 17,186.81 × 6,788.84
  4. Step 4: Simplify right side
    12,454.21x = 116,678,417.27
  5. Step 5: Solve for x
    x = 116,678,417.27/12,454.21
  6. Step 6: Final answer
    x = 9,368.60

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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.