Home / 13,630.64-20,346.49-11,695.28

Finding the Fourth Proportional to 13,630.64, 20,346.49 and 11,695.28

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Solution

The fourth proportional to 13,630.64, 20,346.49 and 11,695.28 is: 17,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.64 : 20,346.49 = 11,695.28 : x
  2. Step 2: Convert to fraction form
    13,630.64/20,346.49 = 11,695.28/x
  3. Step 3: Cross multiply
    13,630.64x = 20,346.49 × 11,695.28
  4. Step 4: Simplify right side
    13,630.64x = 237,957,897.57
  5. Step 5: Solve for x
    x = 237,957,897.57/13,630.64
  6. Step 6: Final answer
    x = 17,457.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.