Home / 15,477.90-21,359.43-8,404.26

Finding the Fourth Proportional to 15,477.90, 21,359.43 and 8,404.26

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Solution

The fourth proportional to 15,477.90, 21,359.43 and 8,404.26 is: 11,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.90 : 21,359.43 = 8,404.26 : x
  2. Step 2: Convert to fraction form
    15,477.90/21,359.43 = 8,404.26/x
  3. Step 3: Cross multiply
    15,477.90x = 21,359.43 × 8,404.26
  4. Step 4: Simplify right side
    15,477.90x = 179,510,203.17
  5. Step 5: Solve for x
    x = 179,510,203.17/15,477.90
  6. Step 6: Final answer
    x = 11,597.84

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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.