Home / 12,436.64-17,161.08-7,130.24

Finding the Fourth Proportional to 12,436.64, 17,161.08 and 7,130.24

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Solution

The fourth proportional to 12,436.64, 17,161.08 and 7,130.24 is: 9,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.64 : 17,161.08 = 7,130.24 : x
  2. Step 2: Convert to fraction form
    12,436.64/17,161.08 = 7,130.24/x
  3. Step 3: Cross multiply
    12,436.64x = 17,161.08 × 7,130.24
  4. Step 4: Simplify right side
    12,436.64x = 122,362,619.06
  5. Step 5: Solve for x
    x = 122,362,619.06/12,436.64
  6. Step 6: Final answer
    x = 9,838.88

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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.