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Finding the Fourth Proportional to 7,551.45, 11,303.83 and 7,440.74

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Solution

The fourth proportional to 7,551.45, 11,303.83 and 7,440.74 is: 11,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.45 : 11,303.83 = 7,440.74 : x
  2. Step 2: Convert to fraction form
    7,551.45/11,303.83 = 7,440.74/x
  3. Step 3: Cross multiply
    7,551.45x = 11,303.83 × 7,440.74
  4. Step 4: Simplify right side
    7,551.45x = 84,108,802.49
  5. Step 5: Solve for x
    x = 84,108,802.49/7,551.45
  6. Step 6: Final answer
    x = 11,138.10

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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.