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Finding the Fourth Proportional to 9,003.34, 13,509.06 and 5,715.55

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Solution

The fourth proportional to 9,003.34, 13,509.06 and 5,715.55 is: 8,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,003.34 : 13,509.06 = 5,715.55 : x
  2. Step 2: Convert to fraction form
    9,003.34/13,509.06 = 5,715.55/x
  3. Step 3: Cross multiply
    9,003.34x = 13,509.06 × 5,715.55
  4. Step 4: Simplify right side
    9,003.34x = 77,211,707.88
  5. Step 5: Solve for x
    x = 77,211,707.88/9,003.34
  6. Step 6: Final answer
    x = 8,575.90

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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.