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Finding the Fourth Proportional to 9,503.70, 13,119.57 and 7,087.11

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Solution

The fourth proportional to 9,503.70, 13,119.57 and 7,087.11 is: 9,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,503.70 : 13,119.57 = 7,087.11 : x
  2. Step 2: Convert to fraction form
    9,503.70/13,119.57 = 7,087.11/x
  3. Step 3: Cross multiply
    9,503.70x = 13,119.57 × 7,087.11
  4. Step 4: Simplify right side
    9,503.70x = 92,979,835.74
  5. Step 5: Solve for x
    x = 92,979,835.74/9,503.70
  6. Step 6: Final answer
    x = 9,783.54

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Half scale
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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.