Home / 10,913.81-16,373.91-3,518.11

Finding the Fourth Proportional to 10,913.81, 16,373.91 and 3,518.11

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Solution

The fourth proportional to 10,913.81, 16,373.91 and 3,518.11 is: 5,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.81 : 16,373.91 = 3,518.11 : x
  2. Step 2: Convert to fraction form
    10,913.81/16,373.91 = 3,518.11/x
  3. Step 3: Cross multiply
    10,913.81x = 16,373.91 × 3,518.11
  4. Step 4: Simplify right side
    10,913.81x = 57,605,216.51
  5. Step 5: Solve for x
    x = 57,605,216.51/10,913.81
  6. Step 6: Final answer
    x = 5,278.19

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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.