Home / 15,117.23-20,853.26-9,065.85

Finding the Fourth Proportional to 15,117.23, 20,853.26 and 9,065.85

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Solution

The fourth proportional to 15,117.23, 20,853.26 and 9,065.85 is: 12,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.23 : 20,853.26 = 9,065.85 : x
  2. Step 2: Convert to fraction form
    15,117.23/20,853.26 = 9,065.85/x
  3. Step 3: Cross multiply
    15,117.23x = 20,853.26 × 9,065.85
  4. Step 4: Simplify right side
    15,117.23x = 189,052,533.97
  5. Step 5: Solve for x
    x = 189,052,533.97/15,117.23
  6. Step 6: Final answer
    x = 12,505.77

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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.