Home / 13,920.98-20,886.60-6,527.84

Finding the Fourth Proportional to 13,920.98, 20,886.60 and 6,527.84

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Solution

The fourth proportional to 13,920.98, 20,886.60 and 6,527.84 is: 9,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.98 : 20,886.60 = 6,527.84 : x
  2. Step 2: Convert to fraction form
    13,920.98/20,886.60 = 6,527.84/x
  3. Step 3: Cross multiply
    13,920.98x = 20,886.60 × 6,527.84
  4. Step 4: Simplify right side
    13,920.98x = 136,344,382.94
  5. Step 5: Solve for x
    x = 136,344,382.94/13,920.98
  6. Step 6: Final answer
    x = 9,794.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.