Home / 13,277.80-18,324.02-7,309.40

Finding the Fourth Proportional to 13,277.80, 18,324.02 and 7,309.40

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Solution

The fourth proportional to 13,277.80, 18,324.02 and 7,309.40 is: 10,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.80 : 18,324.02 = 7,309.40 : x
  2. Step 2: Convert to fraction form
    13,277.80/18,324.02 = 7,309.40/x
  3. Step 3: Cross multiply
    13,277.80x = 18,324.02 × 7,309.40
  4. Step 4: Simplify right side
    13,277.80x = 133,937,555.24
  5. Step 5: Solve for x
    x = 133,937,555.24/13,277.80
  6. Step 6: Final answer
    x = 10,087.33

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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.