Home / 14,386.81-21,580.10-3,998.53

Finding the Fourth Proportional to 14,386.81, 21,580.10 and 3,998.53

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Solution

The fourth proportional to 14,386.81, 21,580.10 and 3,998.53 is: 5,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.81 : 21,580.10 = 3,998.53 : x
  2. Step 2: Convert to fraction form
    14,386.81/21,580.10 = 3,998.53/x
  3. Step 3: Cross multiply
    14,386.81x = 21,580.10 × 3,998.53
  4. Step 4: Simplify right side
    14,386.81x = 86,288,657.26
  5. Step 5: Solve for x
    x = 86,288,657.26/14,386.81
  6. Step 6: Final answer
    x = 5,997.76

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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.