Home / 18,559.43-25,600.54-11,390.51

Finding the Fourth Proportional to 18,559.43, 25,600.54 and 11,390.51

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Solution

The fourth proportional to 18,559.43, 25,600.54 and 11,390.51 is: 15,711.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.43 : 25,600.54 = 11,390.51 : x
  2. Step 2: Convert to fraction form
    18,559.43/25,600.54 = 11,390.51/x
  3. Step 3: Cross multiply
    18,559.43x = 25,600.54 × 11,390.51
  4. Step 4: Simplify right side
    18,559.43x = 291,603,275.81
  5. Step 5: Solve for x
    x = 291,603,275.81/18,559.43
  6. Step 6: Final answer
    x = 15,711.87

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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.