Home / 18,526.40-25,569.45-13,777.87

Finding the Fourth Proportional to 18,526.40, 25,569.45 and 13,777.87

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Solution

The fourth proportional to 18,526.40, 25,569.45 and 13,777.87 is: 19,015.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,526.40 : 25,569.45 = 13,777.87 : x
  2. Step 2: Convert to fraction form
    18,526.40/25,569.45 = 13,777.87/x
  3. Step 3: Cross multiply
    18,526.40x = 25,569.45 × 13,777.87
  4. Step 4: Simplify right side
    18,526.40x = 352,292,575.25
  5. Step 5: Solve for x
    x = 352,292,575.25/18,526.40
  6. Step 6: Final answer
    x = 19,015.71

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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.