Home / 14,318.76-21,480.84-4,958.40

Finding the Fourth Proportional to 14,318.76, 21,480.84 and 4,958.40

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Solution

The fourth proportional to 14,318.76, 21,480.84 and 4,958.40 is: 7,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,318.76 : 21,480.84 = 4,958.40 : x
  2. Step 2: Convert to fraction form
    14,318.76/21,480.84 = 4,958.40/x
  3. Step 3: Cross multiply
    14,318.76x = 21,480.84 × 4,958.40
  4. Step 4: Simplify right side
    14,318.76x = 106,510,597.06
  5. Step 5: Solve for x
    x = 106,510,597.06/14,318.76
  6. Step 6: Final answer
    x = 7,438.53

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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.