Home / 11,301.20-16,935.10-10,669.35

Finding the Fourth Proportional to 11,301.20, 16,935.10 and 10,669.35

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Solution

The fourth proportional to 11,301.20, 16,935.10 and 10,669.35 is: 15,988.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,301.20 : 16,935.10 = 10,669.35 : x
  2. Step 2: Convert to fraction form
    11,301.20/16,935.10 = 10,669.35/x
  3. Step 3: Cross multiply
    11,301.20x = 16,935.10 × 10,669.35
  4. Step 4: Simplify right side
    11,301.20x = 180,686,509.19
  5. Step 5: Solve for x
    x = 180,686,509.19/11,301.20
  6. Step 6: Final answer
    x = 15,988.26

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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.