Home / 15,619.03-21,554.77-8,904.53

Finding the Fourth Proportional to 15,619.03, 21,554.77 and 8,904.53

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Solution

The fourth proportional to 15,619.03, 21,554.77 and 8,904.53 is: 12,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.03 : 21,554.77 = 8,904.53 : x
  2. Step 2: Convert to fraction form
    15,619.03/21,554.77 = 8,904.53/x
  3. Step 3: Cross multiply
    15,619.03x = 21,554.77 × 8,904.53
  4. Step 4: Simplify right side
    15,619.03x = 191,935,096.11
  5. Step 5: Solve for x
    x = 191,935,096.11/15,619.03
  6. Step 6: Final answer
    x = 12,288.54

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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.