Home / 10,318.87-14,240.21-5,603.16

Finding the Fourth Proportional to 10,318.87, 14,240.21 and 5,603.16

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Solution

The fourth proportional to 10,318.87, 14,240.21 and 5,603.16 is: 7,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.87 : 14,240.21 = 5,603.16 : x
  2. Step 2: Convert to fraction form
    10,318.87/14,240.21 = 5,603.16/x
  3. Step 3: Cross multiply
    10,318.87x = 14,240.21 × 5,603.16
  4. Step 4: Simplify right side
    10,318.87x = 79,790,147.05
  5. Step 5: Solve for x
    x = 79,790,147.05/10,318.87
  6. Step 6: Final answer
    x = 7,732.45

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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.