Home / 15,005.26-20,707.24-8,381.26

Finding the Fourth Proportional to 15,005.26, 20,707.24 and 8,381.26

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Solution

The fourth proportional to 15,005.26, 20,707.24 and 8,381.26 is: 11,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,005.26 : 20,707.24 = 8,381.26 : x
  2. Step 2: Convert to fraction form
    15,005.26/20,707.24 = 8,381.26/x
  3. Step 3: Cross multiply
    15,005.26x = 20,707.24 × 8,381.26
  4. Step 4: Simplify right side
    15,005.26x = 173,552,762.32
  5. Step 5: Solve for x
    x = 173,552,762.32/15,005.26
  6. Step 6: Final answer
    x = 11,566.13

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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.