Home / 12,586.12-17,368.49-6,920.88

Finding the Fourth Proportional to 12,586.12, 17,368.49 and 6,920.88

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Solution

The fourth proportional to 12,586.12, 17,368.49 and 6,920.88 is: 9,550.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.12 : 17,368.49 = 6,920.88 : x
  2. Step 2: Convert to fraction form
    12,586.12/17,368.49 = 6,920.88/x
  3. Step 3: Cross multiply
    12,586.12x = 17,368.49 × 6,920.88
  4. Step 4: Simplify right side
    12,586.12x = 120,205,252.37
  5. Step 5: Solve for x
    x = 120,205,252.37/12,586.12
  6. Step 6: Final answer
    x = 9,550.62

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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.