Home / 15,210.72-22,812.48-4,679.28

Finding the Fourth Proportional to 15,210.72, 22,812.48 and 4,679.28

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Solution

The fourth proportional to 15,210.72, 22,812.48 and 4,679.28 is: 7,017.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.72 : 22,812.48 = 4,679.28 : x
  2. Step 2: Convert to fraction form
    15,210.72/22,812.48 = 4,679.28/x
  3. Step 3: Cross multiply
    15,210.72x = 22,812.48 × 4,679.28
  4. Step 4: Simplify right side
    15,210.72x = 106,745,981.41
  5. Step 5: Solve for x
    x = 106,745,981.41/15,210.72
  6. Step 6: Final answer
    x = 7,017.81

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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.