Home / 18,365.13-25,343.38-10,408.10

Finding the Fourth Proportional to 18,365.13, 25,343.38 and 10,408.10

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Solution

The fourth proportional to 18,365.13, 25,343.38 and 10,408.10 is: 14,362.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.13 : 25,343.38 = 10,408.10 : x
  2. Step 2: Convert to fraction form
    18,365.13/25,343.38 = 10,408.10/x
  3. Step 3: Cross multiply
    18,365.13x = 25,343.38 × 10,408.10
  4. Step 4: Simplify right side
    18,365.13x = 263,776,319.67
  5. Step 5: Solve for x
    x = 263,776,319.67/18,365.13
  6. Step 6: Final answer
    x = 14,362.89

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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.