Home / 9,138.30-13,700.28-5,529.06

Finding the Fourth Proportional to 9,138.30, 13,700.28 and 5,529.06

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Solution

The fourth proportional to 9,138.30, 13,700.28 and 5,529.06 is: 8,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138.30 : 13,700.28 = 5,529.06 : x
  2. Step 2: Convert to fraction form
    9,138.30/13,700.28 = 5,529.06/x
  3. Step 3: Cross multiply
    9,138.30x = 13,700.28 × 5,529.06
  4. Step 4: Simplify right side
    9,138.30x = 75,749,670.14
  5. Step 5: Solve for x
    x = 75,749,670.14/9,138.30
  6. Step 6: Final answer
    x = 8,289.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.