Home / 14,290.27-21,421.58-6,388.31

Finding the Fourth Proportional to 14,290.27, 21,421.58 and 6,388.31

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Solution

The fourth proportional to 14,290.27, 21,421.58 and 6,388.31 is: 9,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.27 : 21,421.58 = 6,388.31 : x
  2. Step 2: Convert to fraction form
    14,290.27/21,421.58 = 6,388.31/x
  3. Step 3: Cross multiply
    14,290.27x = 21,421.58 × 6,388.31
  4. Step 4: Simplify right side
    14,290.27x = 136,847,715.34
  5. Step 5: Solve for x
    x = 136,847,715.34/14,290.27
  6. Step 6: Final answer
    x = 9,576.29

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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.