Home / 11,208.15-15,467.76-6,429.51

Finding the Fourth Proportional to 11,208.15, 15,467.76 and 6,429.51

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Solution

The fourth proportional to 11,208.15, 15,467.76 and 6,429.51 is: 8,873.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.15 : 15,467.76 = 6,429.51 : x
  2. Step 2: Convert to fraction form
    11,208.15/15,467.76 = 6,429.51/x
  3. Step 3: Cross multiply
    11,208.15x = 15,467.76 × 6,429.51
  4. Step 4: Simplify right side
    11,208.15x = 99,450,117.60
  5. Step 5: Solve for x
    x = 99,450,117.60/11,208.15
  6. Step 6: Final answer
    x = 8,873.02

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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.