Home / 19,116.57-28,672.65-5,077.70

Finding the Fourth Proportional to 19,116.57, 28,672.65 and 5,077.70

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Solution

The fourth proportional to 19,116.57, 28,672.65 and 5,077.70 is: 7,615.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.57 : 28,672.65 = 5,077.70 : x
  2. Step 2: Convert to fraction form
    19,116.57/28,672.65 = 5,077.70/x
  3. Step 3: Cross multiply
    19,116.57x = 28,672.65 × 5,077.70
  4. Step 4: Simplify right side
    19,116.57x = 145,591,240.35
  5. Step 5: Solve for x
    x = 145,591,240.35/19,116.57
  6. Step 6: Final answer
    x = 7,615.97

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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.