Home / 18,598.68-25,645.68-13,291.56

Finding the Fourth Proportional to 18,598.68, 25,645.68 and 13,291.56

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Solution

The fourth proportional to 18,598.68, 25,645.68 and 13,291.56 is: 18,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,598.68 : 25,645.68 = 13,291.56 : x
  2. Step 2: Convert to fraction form
    18,598.68/25,645.68 = 13,291.56/x
  3. Step 3: Cross multiply
    18,598.68x = 25,645.68 × 13,291.56
  4. Step 4: Simplify right side
    18,598.68x = 340,871,094.46
  5. Step 5: Solve for x
    x = 340,871,094.46/18,598.68
  6. Step 6: Final answer
    x = 18,327.70

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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.