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Finding the Fourth Proportional to 7,555.03, 10,415.12 and 5,309.94

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Solution

The fourth proportional to 7,555.03, 10,415.12 and 5,309.94 is: 7,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,555.03 : 10,415.12 = 5,309.94 : x
  2. Step 2: Convert to fraction form
    7,555.03/10,415.12 = 5,309.94/x
  3. Step 3: Cross multiply
    7,555.03x = 10,415.12 × 5,309.94
  4. Step 4: Simplify right side
    7,555.03x = 55,303,635.74
  5. Step 5: Solve for x
    x = 55,303,635.74/7,555.03
  6. Step 6: Final answer
    x = 7,320.11

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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.