Home / 10,137.84-13,989.42-5,661.24

Finding the Fourth Proportional to 10,137.84, 13,989.42 and 5,661.24

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Solution

The fourth proportional to 10,137.84, 13,989.42 and 5,661.24 is: 7,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.84 : 13,989.42 = 5,661.24 : x
  2. Step 2: Convert to fraction form
    10,137.84/13,989.42 = 5,661.24/x
  3. Step 3: Cross multiply
    10,137.84x = 13,989.42 × 5,661.24
  4. Step 4: Simplify right side
    10,137.84x = 79,197,464.08
  5. Step 5: Solve for x
    x = 79,197,464.08/10,137.84
  6. Step 6: Final answer
    x = 7,812.06

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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.