Home / 14,370.72-21,536.96-6,960.40

Finding the Fourth Proportional to 14,370.72, 21,536.96 and 6,960.40

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Solution

The fourth proportional to 14,370.72, 21,536.96 and 6,960.40 is: 10,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,370.72 : 21,536.96 = 6,960.40 : x
  2. Step 2: Convert to fraction form
    14,370.72/21,536.96 = 6,960.40/x
  3. Step 3: Cross multiply
    14,370.72x = 21,536.96 × 6,960.40
  4. Step 4: Simplify right side
    14,370.72x = 149,905,856.38
  5. Step 5: Solve for x
    x = 149,905,856.38/14,370.72
  6. Step 6: Final answer
    x = 10,431.34

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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.