Home / 18,421.36-25,424.74-10,867.24

Finding the Fourth Proportional to 18,421.36, 25,424.74 and 10,867.24

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Solution

The fourth proportional to 18,421.36, 25,424.74 and 10,867.24 is: 14,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.36 : 25,424.74 = 10,867.24 : x
  2. Step 2: Convert to fraction form
    18,421.36/25,424.74 = 10,867.24/x
  3. Step 3: Cross multiply
    18,421.36x = 25,424.74 × 10,867.24
  4. Step 4: Simplify right side
    18,421.36x = 276,296,751.52
  5. Step 5: Solve for x
    x = 276,296,751.52/18,421.36
  6. Step 6: Final answer
    x = 14,998.72

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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.