Home / 19,666.48-29,501.34-7,979.80

Finding the Fourth Proportional to 19,666.48, 29,501.34 and 7,979.80

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Solution

The fourth proportional to 19,666.48, 29,501.34 and 7,979.80 is: 11,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.48 : 29,501.34 = 7,979.80 : x
  2. Step 2: Convert to fraction form
    19,666.48/29,501.34 = 7,979.80/x
  3. Step 3: Cross multiply
    19,666.48x = 29,501.34 × 7,979.80
  4. Step 4: Simplify right side
    19,666.48x = 235,414,792.93
  5. Step 5: Solve for x
    x = 235,414,792.93/19,666.48
  6. Step 6: Final answer
    x = 11,970.36

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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.