Home / 15,455.44-21,322.92-10,153.12

Finding the Fourth Proportional to 15,455.44, 21,322.92 and 10,153.12

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Solution

The fourth proportional to 15,455.44, 21,322.92 and 10,153.12 is: 14,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.44 : 21,322.92 = 10,153.12 : x
  2. Step 2: Convert to fraction form
    15,455.44/21,322.92 = 10,153.12/x
  3. Step 3: Cross multiply
    15,455.44x = 21,322.92 × 10,153.12
  4. Step 4: Simplify right side
    15,455.44x = 216,494,165.51
  5. Step 5: Solve for x
    x = 216,494,165.51/15,455.44
  6. Step 6: Final answer
    x = 14,007.64

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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.