Home / 10,622.24-15,918.78-5,417.18

Finding the Fourth Proportional to 10,622.24, 15,918.78 and 5,417.18

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Solution

The fourth proportional to 10,622.24, 15,918.78 and 5,417.18 is: 8,118.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,622.24 : 15,918.78 = 5,417.18 : x
  2. Step 2: Convert to fraction form
    10,622.24/15,918.78 = 5,417.18/x
  3. Step 3: Cross multiply
    10,622.24x = 15,918.78 × 5,417.18
  4. Step 4: Simplify right side
    10,622.24x = 86,234,896.64
  5. Step 5: Solve for x
    x = 86,234,896.64/10,622.24
  6. Step 6: Final answer
    x = 8,118.33

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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.