Home / 13,736.28-18,955.98-7,448.64

Finding the Fourth Proportional to 13,736.28, 18,955.98 and 7,448.64

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Solution

The fourth proportional to 13,736.28, 18,955.98 and 7,448.64 is: 10,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,736.28 : 18,955.98 = 7,448.64 : x
  2. Step 2: Convert to fraction form
    13,736.28/18,955.98 = 7,448.64/x
  3. Step 3: Cross multiply
    13,736.28x = 18,955.98 × 7,448.64
  4. Step 4: Simplify right side
    13,736.28x = 141,196,270.87
  5. Step 5: Solve for x
    x = 141,196,270.87/13,736.28
  6. Step 6: Final answer
    x = 10,279.08

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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.