Home / 19,077.77-28,606.65-7,982.39

Finding the Fourth Proportional to 19,077.77, 28,606.65 and 7,982.39

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Solution

The fourth proportional to 19,077.77, 28,606.65 and 7,982.39 is: 11,969.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077.77 : 28,606.65 = 7,982.39 : x
  2. Step 2: Convert to fraction form
    19,077.77/28,606.65 = 7,982.39/x
  3. Step 3: Cross multiply
    19,077.77x = 28,606.65 × 7,982.39
  4. Step 4: Simplify right side
    19,077.77x = 228,349,293.86
  5. Step 5: Solve for x
    x = 228,349,293.86/19,077.77
  6. Step 6: Final answer
    x = 11,969.39

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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.