Home / 15,208.81-22,815.40-4,679.72

Finding the Fourth Proportional to 15,208.81, 22,815.40 and 4,679.72

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Solution

The fourth proportional to 15,208.81, 22,815.40 and 4,679.72 is: 7,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,208.81 : 22,815.40 = 4,679.72 : x
  2. Step 2: Convert to fraction form
    15,208.81/22,815.40 = 4,679.72/x
  3. Step 3: Cross multiply
    15,208.81x = 22,815.40 × 4,679.72
  4. Step 4: Simplify right side
    15,208.81x = 106,769,683.69
  5. Step 5: Solve for x
    x = 106,769,683.69/15,208.81
  6. Step 6: Final answer
    x = 7,020.25

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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.