Home / 12,328.14-17,026.86-8,287.95

Finding the Fourth Proportional to 12,328.14, 17,026.86 and 8,287.95

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Solution

The fourth proportional to 12,328.14, 17,026.86 and 8,287.95 is: 11,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.14 : 17,026.86 = 8,287.95 : x
  2. Step 2: Convert to fraction form
    12,328.14/17,026.86 = 8,287.95/x
  3. Step 3: Cross multiply
    12,328.14x = 17,026.86 × 8,287.95
  4. Step 4: Simplify right side
    12,328.14x = 141,117,764.34
  5. Step 5: Solve for x
    x = 141,117,764.34/12,328.14
  6. Step 6: Final answer
    x = 11,446.80

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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.