Home / 14,208.66-19,608.21-7,920.36

Finding the Fourth Proportional to 14,208.66, 19,608.21 and 7,920.36

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Solution

The fourth proportional to 14,208.66, 19,608.21 and 7,920.36 is: 10,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.66 : 19,608.21 = 7,920.36 : x
  2. Step 2: Convert to fraction form
    14,208.66/19,608.21 = 7,920.36/x
  3. Step 3: Cross multiply
    14,208.66x = 19,608.21 × 7,920.36
  4. Step 4: Simplify right side
    14,208.66x = 155,304,082.16
  5. Step 5: Solve for x
    x = 155,304,082.16/14,208.66
  6. Step 6: Final answer
    x = 10,930.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.