Home / 18,927.84-26,120.58-12,225.90

Finding the Fourth Proportional to 18,927.84, 26,120.58 and 12,225.90

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Solution

The fourth proportional to 18,927.84, 26,120.58 and 12,225.90 is: 16,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927.84 : 26,120.58 = 12,225.90 : x
  2. Step 2: Convert to fraction form
    18,927.84/26,120.58 = 12,225.90/x
  3. Step 3: Cross multiply
    18,927.84x = 26,120.58 × 12,225.90
  4. Step 4: Simplify right side
    18,927.84x = 319,347,599.02
  5. Step 5: Solve for x
    x = 319,347,599.02/18,927.84
  6. Step 6: Final answer
    x = 16,871.85

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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.