Home / 13,116.16-19,655.79-11,160.67

Finding the Fourth Proportional to 13,116.16, 19,655.79 and 11,160.67

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Solution

The fourth proportional to 13,116.16, 19,655.79 and 11,160.67 is: 16,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.16 : 19,655.79 = 11,160.67 : x
  2. Step 2: Convert to fraction form
    13,116.16/19,655.79 = 11,160.67/x
  3. Step 3: Cross multiply
    13,116.16x = 19,655.79 × 11,160.67
  4. Step 4: Simplify right side
    13,116.16x = 219,371,785.78
  5. Step 5: Solve for x
    x = 219,371,785.78/13,116.16
  6. Step 6: Final answer
    x = 16,725.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.