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Finding the Fourth Proportional to 7,515.03, 11,259.81 and 5,313

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Solution

The fourth proportional to 7,515.03, 11,259.81 and 5,313 is: 7,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.03 : 11,259.81 = 5,313 : x
  2. Step 2: Convert to fraction form
    7,515.03/11,259.81 = 5,313/x
  3. Step 3: Cross multiply
    7,515.03x = 11,259.81 × 5,313
  4. Step 4: Simplify right side
    7,515.03x = 59,823,370.53
  5. Step 5: Solve for x
    x = 59,823,370.53/7,515.03
  6. Step 6: Final answer
    x = 7,960.50

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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.