Home / 15,006.08-20,707.84-8,291.57

Finding the Fourth Proportional to 15,006.08, 20,707.84 and 8,291.57

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Solution

The fourth proportional to 15,006.08, 20,707.84 and 8,291.57 is: 11,442.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.08 : 20,707.84 = 8,291.57 : x
  2. Step 2: Convert to fraction form
    15,006.08/20,707.84 = 8,291.57/x
  3. Step 3: Cross multiply
    15,006.08x = 20,707.84 × 8,291.57
  4. Step 4: Simplify right side
    15,006.08x = 171,700,504.91
  5. Step 5: Solve for x
    x = 171,700,504.91/15,006.08
  6. Step 6: Final answer
    x = 11,442.06

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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.