Home / 19,387.48-29,076.36-8,288.68

Finding the Fourth Proportional to 19,387.48, 29,076.36 and 8,288.68

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Solution

The fourth proportional to 19,387.48, 29,076.36 and 8,288.68 is: 12,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.48 : 29,076.36 = 8,288.68 : x
  2. Step 2: Convert to fraction form
    19,387.48/29,076.36 = 8,288.68/x
  3. Step 3: Cross multiply
    19,387.48x = 29,076.36 × 8,288.68
  4. Step 4: Simplify right side
    19,387.48x = 241,004,643.60
  5. Step 5: Solve for x
    x = 241,004,643.60/19,387.48
  6. Step 6: Final answer
    x = 12,430.94

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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.