Home / 10,259.79-15,361.92-5,319.04

Finding the Fourth Proportional to 10,259.79, 15,361.92 and 5,319.04

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Solution

The fourth proportional to 10,259.79, 15,361.92 and 5,319.04 is: 7,964.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,259.79 : 15,361.92 = 5,319.04 : x
  2. Step 2: Convert to fraction form
    10,259.79/15,361.92 = 5,319.04/x
  3. Step 3: Cross multiply
    10,259.79x = 15,361.92 × 5,319.04
  4. Step 4: Simplify right side
    10,259.79x = 81,710,666.96
  5. Step 5: Solve for x
    x = 81,710,666.96/10,259.79
  6. Step 6: Final answer
    x = 7,964.17

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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.