Home / 15,707.07-21,675.47-8,633.34

Finding the Fourth Proportional to 15,707.07, 21,675.47 and 8,633.34

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Solution

The fourth proportional to 15,707.07, 21,675.47 and 8,633.34 is: 11,913.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.07 : 21,675.47 = 8,633.34 : x
  2. Step 2: Convert to fraction form
    15,707.07/21,675.47 = 8,633.34/x
  3. Step 3: Cross multiply
    15,707.07x = 21,675.47 × 8,633.34
  4. Step 4: Simplify right side
    15,707.07x = 187,131,659.00
  5. Step 5: Solve for x
    x = 187,131,659.00/15,707.07
  6. Step 6: Final answer
    x = 11,913.85

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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.