Home / 14,715.72-20,316.06-11,721.96

Finding the Fourth Proportional to 14,715.72, 20,316.06 and 11,721.96

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Solution

The fourth proportional to 14,715.72, 20,316.06 and 11,721.96 is: 16,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.72 : 20,316.06 = 11,721.96 : x
  2. Step 2: Convert to fraction form
    14,715.72/20,316.06 = 11,721.96/x
  3. Step 3: Cross multiply
    14,715.72x = 20,316.06 × 11,721.96
  4. Step 4: Simplify right side
    14,715.72x = 238,144,042.68
  5. Step 5: Solve for x
    x = 238,144,042.68/14,715.72
  6. Step 6: Final answer
    x = 16,182.97

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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.