Home / 13,077.52-18,048.49-7,772.29

Finding the Fourth Proportional to 13,077.52, 18,048.49 and 7,772.29

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Solution

The fourth proportional to 13,077.52, 18,048.49 and 7,772.29 is: 10,726.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.52 : 18,048.49 = 7,772.29 : x
  2. Step 2: Convert to fraction form
    13,077.52/18,048.49 = 7,772.29/x
  3. Step 3: Cross multiply
    13,077.52x = 18,048.49 × 7,772.29
  4. Step 4: Simplify right side
    13,077.52x = 140,278,033.79
  5. Step 5: Solve for x
    x = 140,278,033.79/13,077.52
  6. Step 6: Final answer
    x = 10,726.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.