Home / 13,395.30-18,487.70-10,203.49

Finding the Fourth Proportional to 13,395.30, 18,487.70 and 10,203.49

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Solution

The fourth proportional to 13,395.30, 18,487.70 and 10,203.49 is: 14,082.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.30 : 18,487.70 = 10,203.49 : x
  2. Step 2: Convert to fraction form
    13,395.30/18,487.70 = 10,203.49/x
  3. Step 3: Cross multiply
    13,395.30x = 18,487.70 × 10,203.49
  4. Step 4: Simplify right side
    13,395.30x = 188,639,062.07
  5. Step 5: Solve for x
    x = 188,639,062.07/13,395.30
  6. Step 6: Final answer
    x = 14,082.48

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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.