Home / 18,720.34-25,835.43-10,765.06

Finding the Fourth Proportional to 18,720.34, 25,835.43 and 10,765.06

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Solution

The fourth proportional to 18,720.34, 25,835.43 and 10,765.06 is: 14,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.34 : 25,835.43 = 10,765.06 : x
  2. Step 2: Convert to fraction form
    18,720.34/25,835.43 = 10,765.06/x
  3. Step 3: Cross multiply
    18,720.34x = 25,835.43 × 10,765.06
  4. Step 4: Simplify right side
    18,720.34x = 278,119,954.08
  5. Step 5: Solve for x
    x = 278,119,954.08/18,720.34
  6. Step 6: Final answer
    x = 14,856.57

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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.