Home / 9,419.40-14,139.90-5,725.80

Finding the Fourth Proportional to 9,419.40, 14,139.90 and 5,725.80

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Solution

The fourth proportional to 9,419.40, 14,139.90 and 5,725.80 is: 8,595.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.40 : 14,139.90 = 5,725.80 : x
  2. Step 2: Convert to fraction form
    9,419.40/14,139.90 = 5,725.80/x
  3. Step 3: Cross multiply
    9,419.40x = 14,139.90 × 5,725.80
  4. Step 4: Simplify right side
    9,419.40x = 80,962,239.42
  5. Step 5: Solve for x
    x = 80,962,239.42/9,419.40
  6. Step 6: Final answer
    x = 8,595.27

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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.