Home / 17,125.58-25,688.10-5,438.63

Finding the Fourth Proportional to 17,125.58, 25,688.10 and 5,438.63

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Solution

The fourth proportional to 17,125.58, 25,688.10 and 5,438.63 is: 8,157.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.58 : 25,688.10 = 5,438.63 : x
  2. Step 2: Convert to fraction form
    17,125.58/25,688.10 = 5,438.63/x
  3. Step 3: Cross multiply
    17,125.58x = 25,688.10 × 5,438.63
  4. Step 4: Simplify right side
    17,125.58x = 139,708,071.30
  5. Step 5: Solve for x
    x = 139,708,071.30/17,125.58
  6. Step 6: Final answer
    x = 8,157.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.