Home / 13,278.03-18,323.59-7,309.57

Finding the Fourth Proportional to 13,278.03, 18,323.59 and 7,309.57

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Solution

The fourth proportional to 13,278.03, 18,323.59 and 7,309.57 is: 10,087.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.03 : 18,323.59 = 7,309.57 : x
  2. Step 2: Convert to fraction form
    13,278.03/18,323.59 = 7,309.57/x
  3. Step 3: Cross multiply
    13,278.03x = 18,323.59 × 7,309.57
  4. Step 4: Simplify right side
    13,278.03x = 133,937,563.76
  5. Step 5: Solve for x
    x = 133,937,563.76/13,278.03
  6. Step 6: Final answer
    x = 10,087.16

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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.