Home / 18,437.90-25,446.26-11,272.01

Finding the Fourth Proportional to 18,437.90, 25,446.26 and 11,272.01

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Solution

The fourth proportional to 18,437.90, 25,446.26 and 11,272.01 is: 15,556.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,437.90 : 25,446.26 = 11,272.01 : x
  2. Step 2: Convert to fraction form
    18,437.90/25,446.26 = 11,272.01/x
  3. Step 3: Cross multiply
    18,437.90x = 25,446.26 × 11,272.01
  4. Step 4: Simplify right side
    18,437.90x = 286,830,313.59
  5. Step 5: Solve for x
    x = 286,830,313.59/18,437.90
  6. Step 6: Final answer
    x = 15,556.57

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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.