Home / 11,465.24-15,827.28-8,345.12

Finding the Fourth Proportional to 11,465.24, 15,827.28 and 8,345.12

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Solution

The fourth proportional to 11,465.24, 15,827.28 and 8,345.12 is: 11,520.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.24 : 15,827.28 = 8,345.12 : x
  2. Step 2: Convert to fraction form
    11,465.24/15,827.28 = 8,345.12/x
  3. Step 3: Cross multiply
    11,465.24x = 15,827.28 × 8,345.12
  4. Step 4: Simplify right side
    11,465.24x = 132,080,550.87
  5. Step 5: Solve for x
    x = 132,080,550.87/11,465.24
  6. Step 6: Final answer
    x = 11,520.09

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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.