Home / 18,358.74-25,334.99-10,402.47

Finding the Fourth Proportional to 18,358.74, 25,334.99 and 10,402.47

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Solution

The fourth proportional to 18,358.74, 25,334.99 and 10,402.47 is: 14,355.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.74 : 25,334.99 = 10,402.47 : x
  2. Step 2: Convert to fraction form
    18,358.74/25,334.99 = 10,402.47/x
  3. Step 3: Cross multiply
    18,358.74x = 25,334.99 × 10,402.47
  4. Step 4: Simplify right side
    18,358.74x = 263,546,421.41
  5. Step 5: Solve for x
    x = 263,546,421.41/18,358.74
  6. Step 6: Final answer
    x = 14,355.37

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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.