Home / 14,365.28-21,547.88-3,977

Finding the Fourth Proportional to 14,365.28, 21,547.88 and 3,977

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Solution

The fourth proportional to 14,365.28, 21,547.88 and 3,977 is: 5,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,365.28 : 21,547.88 = 3,977 : x
  2. Step 2: Convert to fraction form
    14,365.28/21,547.88 = 3,977/x
  3. Step 3: Cross multiply
    14,365.28x = 21,547.88 × 3,977
  4. Step 4: Simplify right side
    14,365.28x = 85,695,918.76
  5. Step 5: Solve for x
    x = 85,695,918.76/14,365.28
  6. Step 6: Final answer
    x = 5,965.49

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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.