Home / 13,496.29-18,615.23-11,700.55

Finding the Fourth Proportional to 13,496.29, 18,615.23 and 11,700.55

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Solution

The fourth proportional to 13,496.29, 18,615.23 and 11,700.55 is: 16,138.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.29 : 18,615.23 = 11,700.55 : x
  2. Step 2: Convert to fraction form
    13,496.29/18,615.23 = 11,700.55/x
  3. Step 3: Cross multiply
    13,496.29x = 18,615.23 × 11,700.55
  4. Step 4: Simplify right side
    13,496.29x = 217,808,429.38
  5. Step 5: Solve for x
    x = 217,808,429.38/13,496.29
  6. Step 6: Final answer
    x = 16,138.39

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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.