Home / 18,354.48-25,331.21-10,288.91

Finding the Fourth Proportional to 18,354.48, 25,331.21 and 10,288.91

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Solution

The fourth proportional to 18,354.48, 25,331.21 and 10,288.91 is: 14,199.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.48 : 25,331.21 = 10,288.91 : x
  2. Step 2: Convert to fraction form
    18,354.48/25,331.21 = 10,288.91/x
  3. Step 3: Cross multiply
    18,354.48x = 25,331.21 × 10,288.91
  4. Step 4: Simplify right side
    18,354.48x = 260,630,539.88
  5. Step 5: Solve for x
    x = 260,630,539.88/18,354.48
  6. Step 6: Final answer
    x = 14,199.83

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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.