Home / 15,613.57-21,526.39-11,365.32

Finding the Fourth Proportional to 15,613.57, 21,526.39 and 11,365.32

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Solution

The fourth proportional to 15,613.57, 21,526.39 and 11,365.32 is: 15,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.57 : 21,526.39 = 11,365.32 : x
  2. Step 2: Convert to fraction form
    15,613.57/21,526.39 = 11,365.32/x
  3. Step 3: Cross multiply
    15,613.57x = 21,526.39 × 11,365.32
  4. Step 4: Simplify right side
    15,613.57x = 244,654,310.79
  5. Step 5: Solve for x
    x = 244,654,310.79/15,613.57
  6. Step 6: Final answer
    x = 15,669.34

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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.