Home / 14,119.76-21,181.08-4,259.36

Finding the Fourth Proportional to 14,119.76, 21,181.08 and 4,259.36

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Solution

The fourth proportional to 14,119.76, 21,181.08 and 4,259.36 is: 6,389.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.76 : 21,181.08 = 4,259.36 : x
  2. Step 2: Convert to fraction form
    14,119.76/21,181.08 = 4,259.36/x
  3. Step 3: Cross multiply
    14,119.76x = 21,181.08 × 4,259.36
  4. Step 4: Simplify right side
    14,119.76x = 90,217,844.91
  5. Step 5: Solve for x
    x = 90,217,844.91/14,119.76
  6. Step 6: Final answer
    x = 6,389.47

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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.