Home / 14,260.56-19,678.32-7,971.72

Finding the Fourth Proportional to 14,260.56, 19,678.32 and 7,971.72

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Solution

The fourth proportional to 14,260.56, 19,678.32 and 7,971.72 is: 11,000.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.56 : 19,678.32 = 7,971.72 : x
  2. Step 2: Convert to fraction form
    14,260.56/19,678.32 = 7,971.72/x
  3. Step 3: Cross multiply
    14,260.56x = 19,678.32 × 7,971.72
  4. Step 4: Simplify right side
    14,260.56x = 156,870,057.11
  5. Step 5: Solve for x
    x = 156,870,057.11/14,260.56
  6. Step 6: Final answer
    x = 11,000.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.