Home / 11,415.23-15,752.32-6,634.81

Finding the Fourth Proportional to 11,415.23, 15,752.32 and 6,634.81

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Solution

The fourth proportional to 11,415.23, 15,752.32 and 6,634.81 is: 9,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,415.23 : 15,752.32 = 6,634.81 : x
  2. Step 2: Convert to fraction form
    11,415.23/15,752.32 = 6,634.81/x
  3. Step 3: Cross multiply
    11,415.23x = 15,752.32 × 6,634.81
  4. Step 4: Simplify right side
    11,415.23x = 104,513,690.68
  5. Step 5: Solve for x
    x = 104,513,690.68/11,415.23
  6. Step 6: Final answer
    x = 9,155.64

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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.