Home / 11,029.39-15,210.18-8,507.50

Finding the Fourth Proportional to 11,029.39, 15,210.18 and 8,507.50

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Solution

The fourth proportional to 11,029.39, 15,210.18 and 8,507.50 is: 11,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,029.39 : 15,210.18 = 8,507.50 : x
  2. Step 2: Convert to fraction form
    11,029.39/15,210.18 = 8,507.50/x
  3. Step 3: Cross multiply
    11,029.39x = 15,210.18 × 8,507.50
  4. Step 4: Simplify right side
    11,029.39x = 129,400,606.35
  5. Step 5: Solve for x
    x = 129,400,606.35/11,029.39
  6. Step 6: Final answer
    x = 11,732.34

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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.