Home / 13,277.30-18,322.68-7,309.20

Finding the Fourth Proportional to 13,277.30, 18,322.68 and 7,309.20

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Solution

The fourth proportional to 13,277.30, 18,322.68 and 7,309.20 is: 10,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,277.30 : 18,322.68 = 7,309.20 : x
  2. Step 2: Convert to fraction form
    13,277.30/18,322.68 = 7,309.20/x
  3. Step 3: Cross multiply
    13,277.30x = 18,322.68 × 7,309.20
  4. Step 4: Simplify right side
    13,277.30x = 133,924,132.66
  5. Step 5: Solve for x
    x = 133,924,132.66/13,277.30
  6. Step 6: Final answer
    x = 10,086.70

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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.