Home / 11,890.24-16,389.28-9,048.16

Finding the Fourth Proportional to 11,890.24, 16,389.28 and 9,048.16

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Solution

The fourth proportional to 11,890.24, 16,389.28 and 9,048.16 is: 12,471.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.24 : 16,389.28 = 9,048.16 : x
  2. Step 2: Convert to fraction form
    11,890.24/16,389.28 = 9,048.16/x
  3. Step 3: Cross multiply
    11,890.24x = 16,389.28 × 9,048.16
  4. Step 4: Simplify right side
    11,890.24x = 148,292,827.72
  5. Step 5: Solve for x
    x = 148,292,827.72/11,890.24
  6. Step 6: Final answer
    x = 12,471.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.