Home / 18,215.60-25,137.63-10,257.98

Finding the Fourth Proportional to 18,215.60, 25,137.63 and 10,257.98

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Solution

The fourth proportional to 18,215.60, 25,137.63 and 10,257.98 is: 14,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.60 : 25,137.63 = 10,257.98 : x
  2. Step 2: Convert to fraction form
    18,215.60/25,137.63 = 10,257.98/x
  3. Step 3: Cross multiply
    18,215.60x = 25,137.63 × 10,257.98
  4. Step 4: Simplify right side
    18,215.60x = 257,861,180.10
  5. Step 5: Solve for x
    x = 257,861,180.10/18,215.60
  6. Step 6: Final answer
    x = 14,156.07

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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.