Home / 19,640.48-29,460.80-7,953.92

Finding the Fourth Proportional to 19,640.48, 29,460.80 and 7,953.92

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Solution

The fourth proportional to 19,640.48, 29,460.80 and 7,953.92 is: 11,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.48 : 29,460.80 = 7,953.92 : x
  2. Step 2: Convert to fraction form
    19,640.48/29,460.80 = 7,953.92/x
  3. Step 3: Cross multiply
    19,640.48x = 29,460.80 × 7,953.92
  4. Step 4: Simplify right side
    19,640.48x = 234,328,846.34
  5. Step 5: Solve for x
    x = 234,328,846.34/19,640.48
  6. Step 6: Final answer
    x = 11,930.91

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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.