Home / 15,849.30-21,865.17-9,558.06

Finding the Fourth Proportional to 15,849.30, 21,865.17 and 9,558.06

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Solution

The fourth proportional to 15,849.30, 21,865.17 and 9,558.06 is: 13,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,849.30 : 21,865.17 = 9,558.06 : x
  2. Step 2: Convert to fraction form
    15,849.30/21,865.17 = 9,558.06/x
  3. Step 3: Cross multiply
    15,849.30x = 21,865.17 × 9,558.06
  4. Step 4: Simplify right side
    15,849.30x = 208,988,606.77
  5. Step 5: Solve for x
    x = 208,988,606.77/15,849.30
  6. Step 6: Final answer
    x = 13,185.98

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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.