Home / 13,921.12-20,886.81-6,527.98

Finding the Fourth Proportional to 13,921.12, 20,886.81 and 6,527.98

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Solution

The fourth proportional to 13,921.12, 20,886.81 and 6,527.98 is: 9,794.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.12 : 20,886.81 = 6,527.98 : x
  2. Step 2: Convert to fraction form
    13,921.12/20,886.81 = 6,527.98/x
  3. Step 3: Cross multiply
    13,921.12x = 20,886.81 × 6,527.98
  4. Step 4: Simplify right side
    13,921.12x = 136,348,677.94
  5. Step 5: Solve for x
    x = 136,348,677.94/13,921.12
  6. Step 6: Final answer
    x = 9,794.38

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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.