Home / 18,410.40-25,423.20-13,403.52

Finding the Fourth Proportional to 18,410.40, 25,423.20 and 13,403.52

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Solution

The fourth proportional to 18,410.40, 25,423.20 and 13,403.52 is: 18,509.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.40 : 25,423.20 = 13,403.52 : x
  2. Step 2: Convert to fraction form
    18,410.40/25,423.20 = 13,403.52/x
  3. Step 3: Cross multiply
    18,410.40x = 25,423.20 × 13,403.52
  4. Step 4: Simplify right side
    18,410.40x = 340,760,369.66
  5. Step 5: Solve for x
    x = 340,760,369.66/18,410.40
  6. Step 6: Final answer
    x = 18,509.12

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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.