Home / 15,577.32-21,442.14-13,584.36

Finding the Fourth Proportional to 15,577.32, 21,442.14 and 13,584.36

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Solution

The fourth proportional to 15,577.32, 21,442.14 and 13,584.36 is: 18,698.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,577.32 : 21,442.14 = 13,584.36 : x
  2. Step 2: Convert to fraction form
    15,577.32/21,442.14 = 13,584.36/x
  3. Step 3: Cross multiply
    15,577.32x = 21,442.14 × 13,584.36
  4. Step 4: Simplify right side
    15,577.32x = 291,277,748.93
  5. Step 5: Solve for x
    x = 291,277,748.93/15,577.32
  6. Step 6: Final answer
    x = 18,698.84

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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.