Home / 11,001.87-15,190.90-6,758.75

Finding the Fourth Proportional to 11,001.87, 15,190.90 and 6,758.75

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Solution

The fourth proportional to 11,001.87, 15,190.90 and 6,758.75 is: 9,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.87 : 15,190.90 = 6,758.75 : x
  2. Step 2: Convert to fraction form
    11,001.87/15,190.90 = 6,758.75/x
  3. Step 3: Cross multiply
    11,001.87x = 15,190.90 × 6,758.75
  4. Step 4: Simplify right side
    11,001.87x = 102,671,421.51
  5. Step 5: Solve for x
    x = 102,671,421.51/11,001.87
  6. Step 6: Final answer
    x = 9,332.18

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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.