Home / 15,707.18-21,695.15-11,745.92

Finding the Fourth Proportional to 15,707.18, 21,695.15 and 11,745.92

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Solution

The fourth proportional to 15,707.18, 21,695.15 and 11,745.92 is: 16,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.18 : 21,695.15 = 11,745.92 : x
  2. Step 2: Convert to fraction form
    15,707.18/21,695.15 = 11,745.92/x
  3. Step 3: Cross multiply
    15,707.18x = 21,695.15 × 11,745.92
  4. Step 4: Simplify right side
    15,707.18x = 254,829,496.29
  5. Step 5: Solve for x
    x = 254,829,496.29/15,707.18
  6. Step 6: Final answer
    x = 16,223.76

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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.