Home / 14,005.79-21,015.06-5,241.38

Finding the Fourth Proportional to 14,005.79, 21,015.06 and 5,241.38

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Solution

The fourth proportional to 14,005.79, 21,015.06 and 5,241.38 is: 7,864.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.79 : 21,015.06 = 5,241.38 : x
  2. Step 2: Convert to fraction form
    14,005.79/21,015.06 = 5,241.38/x
  3. Step 3: Cross multiply
    14,005.79x = 21,015.06 × 5,241.38
  4. Step 4: Simplify right side
    14,005.79x = 110,147,888.98
  5. Step 5: Solve for x
    x = 110,147,888.98/14,005.79
  6. Step 6: Final answer
    x = 7,864.46

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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.