Home / 18,459.45-25,465.19-13,415.85

Finding the Fourth Proportional to 18,459.45, 25,465.19 and 13,415.85

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Solution

The fourth proportional to 18,459.45, 25,465.19 and 13,415.85 is: 18,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,459.45 : 25,465.19 = 13,415.85 : x
  2. Step 2: Convert to fraction form
    18,459.45/25,465.19 = 13,415.85/x
  3. Step 3: Cross multiply
    18,459.45x = 25,465.19 × 13,415.85
  4. Step 4: Simplify right side
    18,459.45x = 341,637,102.18
  5. Step 5: Solve for x
    x = 341,637,102.18/18,459.45
  6. Step 6: Final answer
    x = 18,507.44

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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.