Home / 9,421.39-14,135.17-3,877.35

Finding the Fourth Proportional to 9,421.39, 14,135.17 and 3,877.35

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Solution

The fourth proportional to 9,421.39, 14,135.17 and 3,877.35 is: 5,817.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.39 : 14,135.17 = 3,877.35 : x
  2. Step 2: Convert to fraction form
    9,421.39/14,135.17 = 3,877.35/x
  3. Step 3: Cross multiply
    9,421.39x = 14,135.17 × 3,877.35
  4. Step 4: Simplify right side
    9,421.39x = 54,807,001.40
  5. Step 5: Solve for x
    x = 54,807,001.40/9,421.39
  6. Step 6: Final answer
    x = 5,817.29

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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.