Home / 12,311.09-16,965.59-8,948.58

Finding the Fourth Proportional to 12,311.09, 16,965.59 and 8,948.58

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Solution

The fourth proportional to 12,311.09, 16,965.59 and 8,948.58 is: 12,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,311.09 : 16,965.59 = 8,948.58 : x
  2. Step 2: Convert to fraction form
    12,311.09/16,965.59 = 8,948.58/x
  3. Step 3: Cross multiply
    12,311.09x = 16,965.59 × 8,948.58
  4. Step 4: Simplify right side
    12,311.09x = 151,817,831.00
  5. Step 5: Solve for x
    x = 151,817,831.00/12,311.09
  6. Step 6: Final answer
    x = 12,331.80

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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.