Home / 10,422.81-15,637.86-4,579.88

Finding the Fourth Proportional to 10,422.81, 15,637.86 and 4,579.88

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Solution

The fourth proportional to 10,422.81, 15,637.86 and 4,579.88 is: 6,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.81 : 15,637.86 = 4,579.88 : x
  2. Step 2: Convert to fraction form
    10,422.81/15,637.86 = 4,579.88/x
  3. Step 3: Cross multiply
    10,422.81x = 15,637.86 × 4,579.88
  4. Step 4: Simplify right side
    10,422.81x = 71,619,444.07
  5. Step 5: Solve for x
    x = 71,619,444.07/10,422.81
  6. Step 6: Final answer
    x = 6,871.41

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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.