Home / 17,123.40-25,689.90-8,358.60

Finding the Fourth Proportional to 17,123.40, 25,689.90 and 8,358.60

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Solution

The fourth proportional to 17,123.40, 25,689.90 and 8,358.60 is: 12,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,123.40 : 25,689.90 = 8,358.60 : x
  2. Step 2: Convert to fraction form
    17,123.40/25,689.90 = 8,358.60/x
  3. Step 3: Cross multiply
    17,123.40x = 25,689.90 × 8,358.60
  4. Step 4: Simplify right side
    17,123.40x = 214,731,598.14
  5. Step 5: Solve for x
    x = 214,731,598.14/17,123.40
  6. Step 6: Final answer
    x = 12,540.24

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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.