Home / 15,477.36-21,359.20-8,404.24

Finding the Fourth Proportional to 15,477.36, 21,359.20 and 8,404.24

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Solution

The fourth proportional to 15,477.36, 21,359.20 and 8,404.24 is: 11,598.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.36 : 21,359.20 = 8,404.24 : x
  2. Step 2: Convert to fraction form
    15,477.36/21,359.20 = 8,404.24/x
  3. Step 3: Cross multiply
    15,477.36x = 21,359.20 × 8,404.24
  4. Step 4: Simplify right side
    15,477.36x = 179,507,843.01
  5. Step 5: Solve for x
    x = 179,507,843.01/15,477.36
  6. Step 6: Final answer
    x = 11,598.09

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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.