Home / 14,259.60-21,389.40-3,871.35

Finding the Fourth Proportional to 14,259.60, 21,389.40 and 3,871.35

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Solution

The fourth proportional to 14,259.60, 21,389.40 and 3,871.35 is: 5,807.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.60 : 21,389.40 = 3,871.35 : x
  2. Step 2: Convert to fraction form
    14,259.60/21,389.40 = 3,871.35/x
  3. Step 3: Cross multiply
    14,259.60x = 21,389.40 × 3,871.35
  4. Step 4: Simplify right side
    14,259.60x = 82,805,853.69
  5. Step 5: Solve for x
    x = 82,805,853.69/14,259.60
  6. Step 6: Final answer
    x = 5,807.03

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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.