Home / 11,065.10-16,603.72-5,221.56

Finding the Fourth Proportional to 11,065.10, 16,603.72 and 5,221.56

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Solution

The fourth proportional to 11,065.10, 16,603.72 and 5,221.56 is: 7,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,065.10 : 16,603.72 = 5,221.56 : x
  2. Step 2: Convert to fraction form
    11,065.10/16,603.72 = 5,221.56/x
  3. Step 3: Cross multiply
    11,065.10x = 16,603.72 × 5,221.56
  4. Step 4: Simplify right side
    11,065.10x = 86,697,250.24
  5. Step 5: Solve for x
    x = 86,697,250.24/11,065.10
  6. Step 6: Final answer
    x = 7,835.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.