Home / 15,554.58-21,464.28-9,180.84

Finding the Fourth Proportional to 15,554.58, 21,464.28 and 9,180.84

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Solution

The fourth proportional to 15,554.58, 21,464.28 and 9,180.84 is: 12,668.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,554.58 : 21,464.28 = 9,180.84 : x
  2. Step 2: Convert to fraction form
    15,554.58/21,464.28 = 9,180.84/x
  3. Step 3: Cross multiply
    15,554.58x = 21,464.28 × 9,180.84
  4. Step 4: Simplify right side
    15,554.58x = 197,060,120.40
  5. Step 5: Solve for x
    x = 197,060,120.40/15,554.58
  6. Step 6: Final answer
    x = 12,668.95

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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.