Home / 10,991.00-15,166.85-7,011.68

Finding the Fourth Proportional to 10,991.00, 15,166.85 and 7,011.68

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Solution

The fourth proportional to 10,991.00, 15,166.85 and 7,011.68 is: 9,675.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.00 : 15,166.85 = 7,011.68 : x
  2. Step 2: Convert to fraction form
    10,991.00/15,166.85 = 7,011.68/x
  3. Step 3: Cross multiply
    10,991.00x = 15,166.85 × 7,011.68
  4. Step 4: Simplify right side
    10,991.00x = 106,345,154.25
  5. Step 5: Solve for x
    x = 106,345,154.25/10,991.00
  6. Step 6: Final answer
    x = 9,675.66

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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.