Home / 14,439.67-21,670.85-7,419.40

Finding the Fourth Proportional to 14,439.67, 21,670.85 and 7,419.40

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Solution

The fourth proportional to 14,439.67, 21,670.85 and 7,419.40 is: 11,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,439.67 : 21,670.85 = 7,419.40 : x
  2. Step 2: Convert to fraction form
    14,439.67/21,670.85 = 7,419.40/x
  3. Step 3: Cross multiply
    14,439.67x = 21,670.85 × 7,419.40
  4. Step 4: Simplify right side
    14,439.67x = 160,784,667.39
  5. Step 5: Solve for x
    x = 160,784,667.39/14,439.67
  6. Step 6: Final answer
    x = 11,134.93

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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.