Home / 13,277.80-18,323.37-7,309.70

Finding the Fourth Proportional to 13,277.80, 18,323.37 and 7,309.70

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Solution

The fourth proportional to 13,277.80, 18,323.37 and 7,309.70 is: 10,087.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.80 : 18,323.37 = 7,309.70 : x
  2. Step 2: Convert to fraction form
    13,277.80/18,323.37 = 7,309.70/x
  3. Step 3: Cross multiply
    13,277.80x = 18,323.37 × 7,309.70
  4. Step 4: Simplify right side
    13,277.80x = 133,938,337.69
  5. Step 5: Solve for x
    x = 133,938,337.69/13,277.80
  6. Step 6: Final answer
    x = 10,087.39

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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.