Home / 15,112.08-20,859.12-8,825.94

Finding the Fourth Proportional to 15,112.08, 20,859.12 and 8,825.94

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Solution

The fourth proportional to 15,112.08, 20,859.12 and 8,825.94 is: 12,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.08 : 20,859.12 = 8,825.94 : x
  2. Step 2: Convert to fraction form
    15,112.08/20,859.12 = 8,825.94/x
  3. Step 3: Cross multiply
    15,112.08x = 20,859.12 × 8,825.94
  4. Step 4: Simplify right side
    15,112.08x = 184,101,341.57
  5. Step 5: Solve for x
    x = 184,101,341.57/15,112.08
  6. Step 6: Final answer
    x = 12,182.40

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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.