Home / 18,210.72-27,319.04-8,851.28

Finding the Fourth Proportional to 18,210.72, 27,319.04 and 8,851.28

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Solution

The fourth proportional to 18,210.72, 27,319.04 and 8,851.28 is: 13,278.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,210.72 : 27,319.04 = 8,851.28 : x
  2. Step 2: Convert to fraction form
    18,210.72/27,319.04 = 8,851.28/x
  3. Step 3: Cross multiply
    18,210.72x = 27,319.04 × 8,851.28
  4. Step 4: Simplify right side
    18,210.72x = 241,808,324.71
  5. Step 5: Solve for x
    x = 241,808,324.71/18,210.72
  6. Step 6: Final answer
    x = 13,278.35

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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.