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Finding the Fourth Proportional to 7,581.34, 11,309.83 and 7,051.06

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Solution

The fourth proportional to 7,581.34, 11,309.83 and 7,051.06 is: 10,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.34 : 11,309.83 = 7,051.06 : x
  2. Step 2: Convert to fraction form
    7,581.34/11,309.83 = 7,051.06/x
  3. Step 3: Cross multiply
    7,581.34x = 11,309.83 × 7,051.06
  4. Step 4: Simplify right side
    7,581.34x = 79,746,289.92
  5. Step 5: Solve for x
    x = 79,746,289.92/7,581.34
  6. Step 6: Final answer
    x = 10,518.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.