Home / 13,589.70-18,753.83-7,928.35

Finding the Fourth Proportional to 13,589.70, 18,753.83 and 7,928.35

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Solution

The fourth proportional to 13,589.70, 18,753.83 and 7,928.35 is: 10,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.70 : 18,753.83 = 7,928.35 : x
  2. Step 2: Convert to fraction form
    13,589.70/18,753.83 = 7,928.35/x
  3. Step 3: Cross multiply
    13,589.70x = 18,753.83 × 7,928.35
  4. Step 4: Simplify right side
    13,589.70x = 148,686,928.08
  5. Step 5: Solve for x
    x = 148,686,928.08/13,589.70
  6. Step 6: Final answer
    x = 10,941.15

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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.