Home / 18,566.47-25,615.54-11,015.18

Finding the Fourth Proportional to 18,566.47, 25,615.54 and 11,015.18

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Solution

The fourth proportional to 18,566.47, 25,615.54 and 11,015.18 is: 15,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.47 : 25,615.54 = 11,015.18 : x
  2. Step 2: Convert to fraction form
    18,566.47/25,615.54 = 11,015.18/x
  3. Step 3: Cross multiply
    18,566.47x = 25,615.54 × 11,015.18
  4. Step 4: Simplify right side
    18,566.47x = 282,159,783.90
  5. Step 5: Solve for x
    x = 282,159,783.90/18,566.47
  6. Step 6: Final answer
    x = 15,197.28

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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.